Question

The quantity of heat required to raise one mole through one degree Kelvin for a monoatomic gas at constant volume is

• A. $\frac{3}{2}R$
• B. $\frac{5}{2}R$
• C. $\frac{7}{2}R$
• D. $4R$

Answer 1

Answer: (A)

$\frac{3}{2}R$

Answer 2

$(\Delta Q)_{V} = \mu C_{V}\Delta T$Ž $(\Delta Q)_{V} = 1 \times C_{V} \times 1 = C_{V}$

For monoatomic gas

$C_{V} = \frac{3}{2}R$ Ž $(\Delta Q)_{V} = \frac{3}{2}R$