Thermodynamics Quiz-2

A gas expands with temperature accending to relation $V=KT^{\frac23}$, where K is any constant. The work done when the temperature changes by 60 K.

A Carnot engine absorbs $6\times10^5$ cal at $227^\circ C$, the work done per cycle by the engine, if its sink is maintained at $127^\circ C$ is

One gram of air initially at NTP is compressed adiabatically to half its volume, (density of air at NTP $1.29 \times 10^{-3} \text{gram/ cm}^3$, and $\gamma = 1.4$) the work done in the process will be

One mole of an ideal gas of temperature $T_1$ expands slowly according to the law $\frac PV=$ constant, its final temperature is $T_2$ , the work done by the gas is

An ideal gas is expanding such that $PT^2=$ constant, the coefficient of volume expansion is

The freezer in a refrigerator is located on the top section so that

A diatomic gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle the volume of the gas has increased from v to 32v, the efficiency of the engine is

The amount of heat given to a system is 40 J and the amount of work done on the system is 20 J, then the change in internal energy of the system is:

A gas follows a process $TV^{n -1}$ = constant, the bulk modouls of the gas in the process is given by

A closed vessel 10 litre in volume contains a diatomic gas under a pressure of $10^5 N/m^2$. The amount of heat imparted to the gas to increase the pressure in the vessel five times will be: