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Question

If cp and cv denotes the specific heat of nitrogen at constant pressure and constant volume respectively, then

A
cpcv=28R
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B
cpcv=R28
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C
cpcv=R14
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D
cpcv=R
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Solution

The correct option is B cpcv=R28
Molar heat capacity=Molar mass× specific heat capacity
CP=Mcp & CV=Mcv ...(i)
CPCV=R ...(ii)
From Eq (i) & (ii),
MCpMCv=R
28Cp28Cv=R
CpCv=R28


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