MCQ
For a gas the difference between the two specific heats is $4150\, J/kg\, K.$ What is the specific heats at constant volume of gas if the ratio of specific heat is $1.4$
- A$8475\,J/kg\,K$
- B$5186\,J/kg\,K$
- C$1660\,J/kg\,K$
- ✓$10375\,J/kg\,K$
✓
Answer
Correct option: D.
$10375\,J/kg\,K$
d
${C_P} - {C_V} = R = 4150\frac{J}{{kg{\rm{ - }}K}}$ and $\frac{{{C_P}}}{{{C_V}}} = \gamma = 1.4$
${C_P} - {C_V} = R = 4150\frac{J}{{kg{\rm{ - }}K}}$ and $\frac{{{C_P}}}{{{C_V}}} = \gamma = 1.4$
$\Rightarrow$ ${C_V} = \frac{R}{{(\gamma - 1)}} = \frac{{4150}}{{(1.4 - 1)}} = 10375\,J/kg{\rm{ - }}K$
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