MCQ
$P-V$ diagram of a diatomic gas is a straight line passing through origin. The molar heat capacity of the gas in the process will be
- A$4 R$
- B$2.5 R$
- ✓$3 R$
- D$\frac{{4R}}{3}$
Hence $P \propto V$ or $P{V^{ - 1}} = $ constant
Molar heat capacity in the process $P{V^x} = {\rm{constant is }}$
$C = \frac{R}{{\gamma - 1}} + \frac{R}{{1 - x}}$; Here $\gamma = 1.4$ (For diatomic gas)
$\Rightarrow C = \frac{R}{{1.4 - 1}} + \frac{R}{{1 + 1}} \Rightarrow C = 3R$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column $-I$ $R/H_{max}$ |
Column $-II$ Angle of projection $\theta $ |
| $A.$ $1$ | $1.$ ${60^o}$ |
| $B.$ $4$ | $2.$ ${30^o}$ |
| $C.$ $4\sqrt 3$ | $3.$ ${45^o}$ |
| $D.$ $\frac {4}{\sqrt 3}$ | $4.$ $tan^{-1}\,4\,=\,{76^o}$ |