For a refrigerator, heat absorbed from source is $800\, J$ and heat supplied to sink is $500\, J$ then the coefficient of performance is
AIIMS 2019, Easy
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1A gas expands under constant pressure $P$ from volume ${V_1}$ to ${V_2}$. The work done by the gas isView Solution
- 2The efficiency of Carnot's engine operating between reservoirs, maintained at temperatures ${27^o}C$ and $ - {123^o}C,$ is ...... $\%$View Solution
- 3View SolutionAn ideal gas undergoes a cyclic process as shown in diagram. The net work done by the gas in the cycle is
- 4View SolutionTwo gases have the same initial pressure, volume and temperatue. They expand to the same final volume, one adiabatically and the other isothermally
- 5$Assertion :$ Adiabatic expansion is always accompanied by fall in temperature.View Solution
$Reason :$ In adiabatic process, volume is inversely proportional to temperature. - 6View SolutionBy opening the door of a refrigerator placed inside a room you
- 7$540$ calories of heat convert $1 $ cubic centimeter of water at ${100^o}C$ into $1671 $ cubic centimeter of steam at ${100^o}C$ at a pressure of one atmosphere. Then the work done against the atmospheric pressure is nearly ...... $cal$View Solution
- 8Which of the following graphs correctly represents the variation of $\beta = - (dV/dP)/V$ with $P$ for an ideal gas at constant temperatureView Solution
- 9A piece of hot copper at $100^{\circ} C$ is plunged into a pond at $30^{\circ} C$. The copper cools down to $30^{\circ} C$, while the pond being huge stays at its initial temperature. Then,View Solution
- 10The initial pressure and volume of an ideal gas are $P_0$ and $V_0$. The final pressure of the gas when the gas is suddenly compressed to volume $\frac{ V _0}{4}$ will be (Given $\gamma=$ ratio of specific heats at constant pressure and at constant volume)View Solution