Gujarati
11.Thermodynamics
medium

At $N.T.P.$ one mole of diatomic gas is compressed adiabatically to half of its volume $\gamma = 1.41$. The work done on gas will be ....... $J$

A

$1280 $

B

$1610 $

C

$1815 $

D

$2025 $

Solution

(c)${T_2} = {T_1}{\left( {\frac{{{V_1}}}{{{V_2}}}} \right)^{\gamma – 1}} = 273{(2)^{0.41}}$$ = 273 \times 1.328 = 363K$
$W = \frac{{R({T_1} – {T_2})}}{{\gamma – 1}} = \frac{{8.31(273 – 363)}}{{1.41 – 1}}$$ = – \,1824$
==> $|W| \approx 1815 J$

Standard 11
Physics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.