Question

The heat required to raise the temperature of one mole of gas by 1$^\circ$C at constant volume is $k$ times that required to raise the temperature of one mole of triatomic gas at constant pressure. What is the value of $k$ ?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (D)

4

Answer 2

For monoatomic gas C$_v = \frac{3R}{2}$ For triatomic gas C$_v = \frac{6}{2}$R = 3 R and C$_p = 4 R.$