#
Question

**Question**

Five moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 460 to 155 K.

(a) Determine the work done by the gas? (Including the algebraic sign.)

_____? J

(b) Determine the change in its internal energy?

______? J

(a) Determine the work done by the gas? (Including the algebraic sign.)

_____? J

(b) Determine the change in its internal energy?

______? J