Which of the following can be coefficient of performance of refrigerator?
Easy
Download our app for free and get started
(d)
$\beta=\frac{1-\eta}{\eta}$
$\beta=\frac{1}{\eta}-1$
$\eta$ is less than 1 so $\frac{1}{\eta} > 1$
$\Rightarrow \frac{1}{\eta}-1 > 0$
$\Rightarrow \beta > 0$
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 diatomic gas, having $C_{p}=\frac{7}{2} R$ and $C _{ v }=\frac{5}{2} R ,$ is heated at constant pressure. The ratio $dU : dQ : dW :$View Solution
- 2View SolutionA cycle tyre bursts suddenly. This represents an
- 3Which of the following graphs correctly represents the variation of $\beta = - (dV/dP)/V$ with $P$ for an ideal gas at constant temperatureView Solution
- 4View SolutionA container that suits the occurrence of an isothermal process should be made of
- 5When $1\, gm$ of water at ${0^o}C$ and $1 \times {10^5}\;N/{m^2}$ pressure is converted into ice of volume $1.091\;c{m^2}$, the external work done will beView Solution
- 6View SolutionA system is taken through a cyclic process represented by a circle as shown. The heat absorbed by the system is
- 7The efficiency of a Carnot engine operating with reservoir temperature of $100\,^{\circ} C$ and $-23\,^{\circ} C$ will beView Solution
- 8Initial pressure and volume of a gas are $ P$ and $V$ respectively. First it is expanded isothermally to volume $4V$ and then compressed adiabatically to volume $ V$. The final pressure of gas will beView Solution
- 9A Carnot engine operates between two reservoirs of temperatures $900\; \mathrm{K}$ and $300 \;\mathrm{K}$ The engine performs $1200\; \mathrm{J}$ of work per cycle. The heat energy (in $\mathrm{J}$ ) delivered by the engine to the low temperature reservoir, in a cycle. isView Solution
- 10During which of the following thermodynamic process represented by $P V$ diagram the heat energy absorbed by system may be equal to area under $P V$ graph?View Solution