In a study, the steam in a steam engine drops in temperature by 300 K to 450 K, and drops in quantity of heat to 850.0 MJ.

a. Assuming that the engine is perfectly efficient, and that it can exert a force of 15.0 kN, how far (metres) can it exert that force over?

b. If a new fuel were used that could release ¼ more heat when burning, what would be the high temperature that the steam would now reach?

I am confused as to what unit I would need to convert what into. Any help?

Question

In a study, the steam in a steam engine drops in temperature by 300 K to 450 K, and drops in quantity of heat to 850.0 MJ.

a.      Assuming that the engine is perfectly efficient, and that it can exert a force of 15.0 kN, how far (metres) can it exert that force over?

b.      If a new fuel were used that could release ¼ more heat when burning, what would be the high temperature that the steam would now reach?

I am confused as to what unit I would need to convert what into. Any help?

thadyoung · Answer

You can start by writing down everything you have, and some key formulas that you may need. You have force, temperature, and heat (energy).

What formulae or formulas relate all of these perhaps?