Question

Specific heat of a gas undergoing adiabatic change is

• A. zero
• B. infinite
• C. positive
• D. negative

Answer 1

Answer: (A)

If during a process taking place in a system, heat $(Q)$ neither enters the system nor leaves it, then the process is adiabatic that is $Q=0$.
From the formula of specific heat, we have
$c=\frac{Q}{m\Delta T}$
For adiabatic change $Q=0$
$\therefore c=0$