Question

The equation of process of a diatomic gas is P² = a²V, where a is a constant. Then choose the correct option-

• A. Work done by gas for a temperature change T is $\frac{2}{3}$anRT
• B. The change in internal energy is $\frac{5}{2}$nRT for a temperature change T
• C. Specific heat for the process is $\frac{19}{9}$R
• D. The change in internal energy for a temperature change T is $\frac{5}{2}$anRT

Answer 1

Answer: (B)

The change in internal energy is $\frac{5}{2}$nRT for a temperature change T

Answer 2

Internal energy change is

DU = n C_V DT

= n$\frac{5}{2}$R (T – 0)

= $\frac{5}{2}$nRT