Question

For each of the following adiabatic process, find the change in internal energy.

(a) during an adiabatic compression where 60 J work is done on the gas.

(b) during an adiabatic expansion where 65 J of work is done by the gas

Answer 1

a)

$$\Delta U=-W=-60\ J$$

b)

$$\Delta U=W=65\ J$$