Heat is so closely related to the same units are used to measure both.

I am pretty sure temperature is wrong. It is actually work.

Explanation:

Scientists use the term joule(s) for heat. Temperature is measured in celcius, kelvin, fahrenheit. Work also uses the same term for measuring; joules. I am pretty sure the right answer is actually work, even though temperature sounds more correct. I learned this in science so I think I am right.

dynamic equilibrium is the answer.