Mate, seriously. Heat is just a measure of energy transfer.
Potential energy is potential energy. It doesn't change. You can't create it nor destroy it – you can only transfer it or convert it to mass.
I'm not trying to be a smart-arse, I'm actually trying to help people understand why torque moves things. And I'm trying to explain to you why time doesn't matter to a potential force.
You think that because an engine only applies torque when it's running, that torque and rpm are inextricably linked – which is not the case.
I am saying that the potential for that torque already exists before it is applied. Ie; before you even start the engine.
An electric engine is a prime example of this. We already know how much torque we have before we start using it, because we know how much energy will be used. That energy is the potential force (converted to a rotational force = torque).
Is it that hard to understand?
