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Search options not deleted user 318923

The product of the force on an object and the displacement the object undergoes along the direction of the force.

1 vote
2 answers
116 views

Is there a formula of heat that expresses it in microscopic work done?

If I understand correctly looking at the first law of thermodynamics we have a microscopic work term (heat: $Q$) and macroscopic work term ($W$) $$ \Delta E = \Delta Q + \Delta W$$ The macroscopic work … My question is: is there a way of describing heat as microscopic work? …
bananenheld's user avatar
  • 2,180
0 votes

What is the differentiating factor between work and heat?'

The key difference between work and heat lies in how they affect the system’s microstates. … Work When work is done on a system, how the microstates change depends on how the work is applied. …
bananenheld's user avatar
  • 2,180
3 votes
2 answers
402 views

Understanding the shape of Carnot loop in the $p$-$V$ plane

The area enclosed by a loop is the total work done. If you draw a square, isn't that the maximum amount of work done possible instead. … It seems that an isobaric path gives the most work per area. …
bananenheld's user avatar
  • 2,180
0 votes
2 answers
310 views

How is the 'lost' work related to the entropy change in free expansion? Why is it not just d...

How exactly is the work 'lost' related to the entropy 'gained'? … = \int_{V_0}^V \frac{nRT}{V} dV = nRT \ln \frac{V}{V_0 }= nRT \ln 2$$ So the energy (work) 'lost' to the universe is for example 300 Joules. …
bananenheld's user avatar
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1 vote
2 answers
134 views

I am confused about the minus signs in potential and kinetic energies

I'm not using Work because I am using potential energies. I think I should not get a minus sign there for the potential energy of gravity. …
bananenheld's user avatar
  • 2,180
1 vote

What happens to entropy during compression?

Entropy is a measure of how many microscopic states (or "microstates") a system can occupy. The more possible microstates, the higher the entropy. For a gas, these microstates can be related to both p …
bananenheld's user avatar
  • 2,180