Derive an expression for the relation between volume and temperature in adiabatic expansion.

In a certain process, $600J$ of work is done on the system which gives off $250J$ of heat. What is the

change in internal energy for the process?

A system which cannot exchange heat with the surrounding but may do work is known as:

a$)$ closed system

b$)$ open system

c$)$ isolated system

d$)$ adiabatic system

For adiabatic compression of an ideal gas, the change in internal energy is:

a$)$ positive

b$)$ negative

c$)$ zero

d$)$ impossible to tell