An ideal gas expands in such a way that $PV^2 =$ constant throughout the process
In the process, $T-V$ diagram is a parabola
In the process, $T-V$ diagram is a straight line
Such an expansion is possible only with heating
Such an expansion is possible only with cooling
An ideal gas expands isothermally from a volume $V_1$ to $V_2$ and then compressed to original volume $V_1$ adiabatically. Initial pressure is $P_1$ and final pressure is $P_3$ . The total work done is $W$ . Then
A carnot engine operation between temperature $T_1$ and $T_2$ has efficiency $\frac{1}{6}$. When $T_2$ is lowered by $62\, K$, its efficiency increase to $\frac{1}{3}$. Then $T_1$ and $T_2$ are, respectively
In thermodynamic processes which of the following statements is not true
In the cyclic process shown on the $P -V$ diagram, the magnitude of the work done is
The efficiency of Carnot engine is $50\%$ and temperature of sink is $500\, K$. If the temperature of source is kept constant and its efficiency is to be raised to $60\%$, then the required temperature of the sink will be........ $K$