(c)In isothermal process, exchange of energy takes place between system and surrounding to maintain the system temperature constant.
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The $P-V$ diagram of a system undergoing thermodynamic transformation is shown in figure. The work done by the system in going from $A \to B \to C$ is $30J$ and $40J$ heat is given to the system. The change in internal energy between $A$ and $C$ is ....... $J$
A certain amount of gas is taken through a cyclic process $(A\,B\,C\,D\,A)$ that has two isobars, one isochore and one isothermal. The cycle can be represented on a $P-V$ indicator diagram as
The efficiency of carnot engine is $50\%$ and temperature of sink is $500\;K$. If temperature of source is kept constant and its efficiency raised to $60\%$, then the required temperature of the sink will be
During an experiment, an ideal gas is found to obey a condition $\frac{{{P^2}}}{\rho }$ = constant [$\rho =$ density of the gas]. The gas is initially at temperature $T,$ pressure $P$ and density $\rho$ . The gas expands such that density changes to $\rho/2$
A refrigerator consumes an average $35\, {W}$ 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? (in ${J} / {s}$)
Three moles of an ideal gas $\left( {{C_P} = \frac{7}{2}R} \right)$ at pressure ${P_A}$ and temperature ${T_A}0$ is isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally the gas is compressed at constant volume to its original pressure ${P_A}.$ The correct $P-V$ and $P-T$ diagrams indicating the process are