If we increase the distance traveled when doing work, and keep all other factors the same, what will happen?
a) the amount of force will go down
b) the amount of force will increase.
c) the amount of work will decrease
d) the amount of work will increase

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.