It's the physical property that indicates the degree/intensity of heat present in a substance or an object. It can be expressed and measured according to various scales.

learn more… | top users | synonyms (1)

2
votes
1answer
11 views

How quickly does the temperature rise in a water container submerged in a hot water bath?

Let's assume I have a small bottle (neglecting any insulation from the walls of the bottle) containing e.g. 150ml water at 4°C and place it in a larger pot with sufficient water at 80°C so that the ...
-1
votes
0answers
14 views

specific heat capacity (temperature) [on hold]

A 60KG bushwalker is suffering from hypothermia, having an average temperature of 33.5degrees.when rescued she was wrapped in a warm blanket and given two 310ml cups of warm tea each at a temperature ...
-2
votes
1answer
72 views

Is climate change caused by humans? [on hold]

Some people argue it is not because it is caused by solar cycles (sometimes the sun brights more than others thus increasing the Earth's temperature) and that the energy that $CO_2$ traps isn't enough ...
0
votes
1answer
14 views

Motivation for integrals over scalar field

I'm looking for good examples of physical motivation for integrals over scalar field. Here is an example I've seen: If you want to know the final temperature of an object that travels through a ...
1
vote
4answers
91 views

The impatient hot tub owner [on hold]

An impatient man owns a 300 gallon hot tub. He comes home from a hard day of work and sees that his hot tub is currently simmering at 90F. For maximum relaxation, he wants it at 104F. However, the hot ...
1
vote
2answers
54 views

Does shaking a kettle whilst boiling increase the temperature faster than a statically-placed jug?

Water molecules move faster at higher temperatures. Does shaking a boiling kettle whilst it is in the process of boiling water increase the rate of rising temperature ? Is it worthwhile to do so ...
0
votes
1answer
39 views

Can this Temperature Scale be Considered an absolute temperature scale?

Me and My friend are having a discussion about Absolute Temperature Scales. I think Absolute Temperature Scales are those who have their zero on Absolute zero. So Can we define a new Scale (say ...
3
votes
1answer
96 views

Number theoretic loophole allows alternative definition of entropy?

A bit about the post I apologize for the title. I know it sounds crazy but I could not think of an alternative one which was relevant. I know this is "wild idea" but please read the entire post. ...
2
votes
2answers
49 views

Does temperature have any effect on static electricity?

This is one of those questions that came up during a discussion with a friend on static electricity. His argument (which I dispute) is that there must be a relation between temperature and the ...
-3
votes
0answers
48 views

Did temp change affect the propagation of sound? If yes then how? [closed]

propagation of sound is affected by change in temperature. Is it increases or decreases and how?
-3
votes
2answers
30 views

Why can't we use Boltzmann's ideal gas law using temperature in Celsius (intuition)? [closed]

Mathematically, i can see why we won't get the same results when inserting a temperature in Celsius rather than Kelvin(because K=C+273.15), but i can't understand how can a law not "work" for any man ...
1
vote
0answers
34 views

How can I accurately determine a change in temperature if specific heat rises with increasing temperature? [closed]

This is my first post. I tried searching for a similar question but couldn't find quite what I was looking for. So, in an animated series, I noticed an impressive showing of power for a heat-based ...
1
vote
2answers
97 views

Shouldn't General Relativity Predict a Maximum Temperature?

I've seen a lot of questions about maximum temperature and “absolute hot” — several ask if special relativity places any limits on temperature (clearly not). (Also this discussion of absolute hot on a ...
0
votes
1answer
23 views

Differences between thermal and non-thermal plasmas

I have a doubt about plasmas which may as well be trivial or very stupid, but I couldn't get a clear and straightforward answer anywhere I looked, and I can't get the grasp of it since I wasn't given ...
3
votes
2answers
93 views

Can I cook an egg by holding it in thermosphere?

It is known that in thermosphere, air temperature is rising sharply with increase of altitude. In upper atmosphere, temperatures can even reach 2000°C or higher: see 2. However, air there is ...
2
votes
0answers
23 views

Does a rapid temperature change crack annealed glass [closed]

Over at Lifehacks.SE there is a question about how to remove ice from a windshield. One answer suggests using water but warns that using boiling water might crack the windshield. As far as I ...
4
votes
2answers
120 views

Hotter than the Absolute Hot?

Is the Planck temperature ($1.416×10^{32}$ kelvin), the hottest possible temperature that can ever be reached, with absolute zero as it's opposite analogue ? All I know is a particle with that ...
2
votes
2answers
52 views

Why do some materials shrink when their temperature increases?

In my vision it would seem quite logical that all materials expand when temperature rises. Because the particles get more energy and travel larger distances when moving. But apparently there are ...
0
votes
2answers
37 views

Can temperature rise after sunset?

Generally speaking I suppose temperature rises as long as the sun is up and then it continues to fall until sunrise the next day. I have once noticed temperature rise temporarily during night (In my ...
1
vote
2answers
40 views

Large scale structure of the universe

I have read of two seemingly straightforward explanations that give reasons for the inhomogeneity of the large-scale structure of the universe (i.e. why stars / galaxies formed where they did) One is ...
3
votes
3answers
56 views

The temperature a liquid would boil: question incorrectly formulated or not?

I have met a question in a high school physics book which I think is incorrectly formulated. The question is this: In order to reach boiling temperature, a certain liquid requires twice the amount of ...
1
vote
1answer
40 views

Hottest period in the history of the universe

Stack exchange's tagline is 'hot questions' - so here is one that will hopefully cause some heated debate. I remember hearing that the period immediately after inflation is theorized to be the ...
0
votes
1answer
44 views

CFT and temperature

I have tried to think about this for some time but could not really go anywhere. Sorry for the sloppy question and thanks for any pointer. My question is about CFT at finite temperature and ...
4
votes
3answers
108 views

Would a bag of neutrons have temperature?

Neutrons interact with each other only via exchange interaction, while "every-day particles" and their temperatures are governed by electrostatic forces. What are the implications of this difference ...
3
votes
0answers
93 views

My bathroom door stays open in summer [closed]

My bathroom door remains open in summer, but in the winter it stays about halfway between fully open (90 degree angle, against a window) and closed. The door is between bedroom and bathroom and it is ...
3
votes
0answers
21 views

How are melting points of metals measured?

How are melting points of metals measured? What apparatuses are used and how do they "conceive" heat units?
2
votes
1answer
37 views

A thermometer in the wind

Consider two cases, Situation 1: a thermometer is stationary and air is blowing past it. Situation 2: the thermometer is moving with the wind, say on a car or something. Assuming now friction ...
4
votes
1answer
34 views

Is single tree shadow locally affecting air temperature?

In other words, is the air temperature under a single tree different from a couple meters away, in a hot day and under the sun? There are several effects potentially interacting: Tree transpiration ...
0
votes
1answer
32 views

Proving the existence of temperature from zeroth law in the MIT OCW notes

This question refers to the following set of lecture notes: ...
0
votes
2answers
40 views

Meaning of temperature during phase transition

Microscopically, temperature is related to the average kinetic energy of a system in thermal equilibrium. Both LIQUID water and GASEOUS steam can exist (independently) at a temperature of 100 degree ...
1
vote
2answers
50 views

What temperature is an evaporating cup of water at “room temperature”?

If I put 100 g of water in a cylindrical cup and I know it takes 2 weeks (lets say 1.2 × 106 seconds) at some RH/temp to completely evaporate in my room with a constant temperature, can I ...
0
votes
3answers
82 views

Why is the speed of sound lower at higher altitudes?

At sea level the speed of sound is 760mph, but at altitudes like the Concorde would fly at (55,000ft) the sound barrier is at 660mph, so 1000th slower. Does it have to do with lower pressure?
2
votes
1answer
35 views

Calorimetry Problem

I was doing a problem in thermodynamics where the net heat is 0. I dont understand why if you have say a copper calorimeter with water at say, 15C and add a mass of copper at a higher temperature say, ...
1
vote
1answer
17 views

Blue tarp temperature seems too cool with infrared thermometer [closed]

I have just measured under a blue tarp in direct sunlight and got 27C reading with my tiny infrared thermometer. I had just sprayed a toy with white paint on some newspaper. When I put the newspaper ...
5
votes
1answer
212 views

How far away from the Sun does space start to be cold?

I assume that if I stood on the sun, I would be hot. I similarly assume that if I stood about 10 feet from the sun, I would still be hot. However, if I stood in space 93 million miles away, I would be ...
17
votes
2answers
533 views

Why does William Herschel's experiment show red light as warmer than blue?

Why does William Herschel's experiment show red light as warmer than blue if blue light is higher energy? Here is an explanation of Herschel's experiment ...
1
vote
0answers
18 views

Can an object above absolute zero temperature exists in principle, if there is only one object in the whole universe and nothing else

It is said that: All matter with a temperature greater than absolute zero emits thermal radiation. For suppose, there is only object in the whole universe and it emits radiations above ...
0
votes
1answer
37 views

How does the temperature of a magnet affect its characteristics? [closed]

How does the temperature of a magnet affect its characteristics? Is a hot or cold magnet stronger? Or does it not matter?
0
votes
1answer
18 views

3D thermography setup

I want to know if its possible (yet) to sense the temperature throughout a given cylinder using non-invasive techniques? Such as ultrasonic or visual imaging etc. The temperature ranges from 250-450C. ...
1
vote
3answers
44 views

How do you calculate oxygen temperature as atm pressure changes? [closed]

I know that when gases are decompressed the atoms suddenly have a bunch of space and absorb all the heat around them thereby giving the effect that it is cool but how do you calculate this for oxygen ...
0
votes
3answers
46 views

When can we consider temperature and pressure as two independent properties of a pure substance?

I thought that pressure and temperature were always dependent properties on each other.But is there any state of a surrounding or condition when these two properties behave independently of a pure ...
1
vote
0answers
41 views

Why does it feel warmer when it is snowing? [duplicate]

It doesn't snow a lot where I live, but whenever it does and I go outside, the air feels warmer than I would expect on an clear day with an equivalent temperature, even though thermometer on my car ...
1
vote
2answers
32 views

Relative temperature sensitivity? [duplicate]

Why does the outside temperature feel cooler when the humidity is low as opposed to average or higher humidity levels?
1
vote
1answer
33 views

What is the temperature of a vacuum? [duplicate]

what is the temperature of Vacuum since temperature of a system is related to the average of the molecular kinetic energy and there is no molecule in a vacuum? i know there could be radiations but i ...
0
votes
2answers
24 views

Increasing water temperature without salt

I have been extremely curious on how to get water even hotter by couple more degrees when its boiling. Rather then adding salt .... I started to stirring it.. Same Concept works with cooling the ...
2
votes
0answers
39 views

2-loop $\phi^4$ at finite temperature [closed]

When evaluating diagrams that contribute to the 2-loop effective potential $V_{eff}$ in $\lambda \phi^4 $ theory at finite temperature one has to calculate diagrams of such type which equals to ...
1
vote
0answers
32 views

Highest temperature [duplicate]

The temperature of a body varies with the KE of its particles. The maximum KE can be obtained by making the atoms move about near the speed of light. Let us take the body as a gas so that the body can ...
0
votes
2answers
71 views

Why doesn't wind chill affect thermometers

I know that wind chill essentially works by 'wicking' more heat away from a substance, making it 'feel' cooler, but then why doesn't wind chill affect thermometers? Wouldn't the wind 'wick' heat away ...
1
vote
1answer
132 views

Why is the logarithm of the number of all possible states of a system differentiable?

Temperature of a system is defined as $$\left( \frac{\partial \ln(\Omega)}{ \partial E} \right)_{N, X_i} = \frac{1}{kT}$$ Where $\Omega$ is the number of all accessible states (ways) for the system. $ ...
2
votes
2answers
102 views

Temperature of fusion in the Sun vs. fusion in controlled experiments on Earth

I recently learned that hydrogen fusion (i.e., hydrogen to helium) experiments on Earth have been successful at temperatures in excess of 100,000,000 degrees Celsius. However, I also learned that ...