11.Thermodynamics
medium

एक गैस की रुद्धोष्म प्रत्यास्थता का गुणांक $2.1 \times {10^5}N/{m^2}$  है। समतापीय प्रत्यास्थता गुणांक होगा $\left( {\frac{{{C_p}}}{{{C_v}}} = 1.4} \right)$

A

$1.8 \times {10^5}N/{m^2}$

B

$1.5 \times {10^5}N/{m^2}$

C

$1.4 \times {10^5}N/{m^2}$

D

$1.2 \times {10^5}N/{m^2}$

Solution

$\frac{{{\rm{Adiabatic elasticicity}}\;({E_\varphi })}}{{{\rm{Isothermal}}\;{\rm{elasticicity}}\;({E_\theta })}} = \gamma $

$\Rightarrow$ ${E_\theta } = \frac{{{E_\varphi }}}{\gamma }$

$\Rightarrow$ ${E_\theta } = \frac{{2.1 \times {{10}^5}}}{{1.4}}$$ = 1.5 \times {10^5}N/{m^2}$

Standard 11
Physics

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