Question

One mole of an ideal monoatomic gas, initially at temperature 𝑇𝑜 is expanded from an initial volume 𝑉𝑜 to 2.5𝑉𝑜. Which of the following statements is(are) correct?
(R is the ideal gas constant)

• A. When the process is isothermal, the work done is 𝑅𝑇𝑜 ln 2
• B. When the process is isothermal, the change in internal energy is zero
• C. When the process is isobaric, the work done is $\frac{3}{2}$ RT0
• D. When the process is isobaric, the change in internal energy is $\frac{9}{2}$ RT0

Answer 1

Answer: (B), (C)

When the process is isothermal, the change in internal energy is zero

Answer 2

The correct options are: B and C