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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.
3
votes
Accepted
Freeze and "break apart" an object. How?
The usual way to cool down object to this temperature, is by putting it in liquid nitrogen. For an example, consider this movie, where it is done with a tulip. …
5
votes
Should I heat my room when I'm not here, energy-efficiently speaking?
The outside, or ambient temperature $T_a$ is constant.
The temperature of your house $T_h$, is uniform over for your whole house, but a function of time $T_h(t)$. …
1
vote
Accepted
Heat Flux and Spatial Temperature Gradients
You mention a temperature difference at both sides, but this is a 1D problem. You have different temperatures at both sides, and a temperature difference across the rod. … Now, suppose the flux would be proportional to the temperature. Then you get some problems. First, suppose you have a rod of uniform temperature. …