Heat is supplied to a di-atomic gas at constant pressure. ratio of Delta Q:Delta U:Delta W is

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12.Kinetic Theory of Gases

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Heat is supplied to a di-atomic gas at constant pressure. The ratio of $\Delta Q:\Delta U:\Delta W$ is

A

$5 : 3 : 2$

B

$5 : 2 : 3$

C

$7 : 5 : 2$

D

$7 : 2 : 5$

Solution

At constant pressure

${\rm{dQ}} = \mu {{\rm{C}}_{\rm{p}}}{\rm{dT}};{\rm{du}} = \mu {{\rm{C}}_{\rm{v}}}{\rm{dT}}$

$\mathrm{dW}=\mu \mathrm{RdT}$

for diatomic Gas,

${C_p} = \frac{7}{2}R\,\,;\,\,{C_v} = \frac{5}{2}R$

Standard 11

Physics

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