Thermodynamics

Starting at temperature $300K,$ one mole of an ideal diatomic gas $\left(\gamma\,=1.4\right)$ is first compressed adiabatically from volume $V_{1}$ to $V_{2}=\frac{V_{1}}{16}.$ It is then allowed to expand isobarically…

An ideal gas has undergone through the cyclic process as shown in the figure. Work done by the gas in the entire cycle is ______ $\times 10^{-1} \mathrm{~J}$. (Take $\pi=3.14$)

A thermodynamic system is taken through the cyclic process $A B C$ as shown in the figure. The total work done by the system during the cycle $A B C$ is $\_\_\_\_$ J?

One mole of an ideal gas at $27^{\circ}C$ is taken from $A$ to $B$ as shown in the given $PV$ indicator diagram. The work done by the system will be…

Thermodynamic process is shown below on a $P-V$diagram for one mole of an ideal gas. If $V_{2}=2V_{1}$, then the ratio of temperature $\frac{T_{2}}{T_{1}}$ is :

$n$mole of a perfect gas undergoes a cyclic process $ABCA$(see figure) consisting of the following processes. $A\rightarrow\,B:$ Isothermal expansion at temperature $T$ so that the volume is doubled from $V_{1}$ to…

An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to

The $P-V$ diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process $CD$ is (use $\gamma\,=1.4)$ :

A refrigerator consumes an average $35W$ power to operate between temperature $-10^{\circ}C$ to $25^{\circ}C$. If there is no loss of energy then how much average heat per second does it transfer?

A heat engine operates with the cold reservoir at temperature $324K$. The minimum temperature of the hot reservoir, if the heat engine takes $300J$ heat from the hot reservoir and delivers $180J$ heat to the cold…

If one mole of an ideal gas at $\left(P_{1},V_{1}\right)$ is allowed to expand reversibly and isothermally ($A$ to $B$) its pressure is reduced to one-half of the original pressure (see figure). This is followed by a…

In $1^{\mathrm{st}}$ case, Carnot engine operates between temperatures $300 K$ and $100 K$. In $2^{\mathrm{nd}}$ case, as shown in the figure, a combination of two engines is used. The efficiency of this combination (in…