Can the coefficient of performance of a refri | vedclass

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Question

(B) The coefficient of performance $(\beta)$ of a refrigerator is defined by the formula $\beta = \frac{Q_2}{W} = \frac{Q_2}{Q_1 - Q_2} = \frac{T_2}{T

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No

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(B) The coefficient of performance $(\beta)$ of a refrigerator is defined by the formula $\beta = \frac{Q_2}{W} = \frac{Q_2}{Q_1 - Q_2} = \frac{T_2}{T_1 - T_2}$.Here, $T_2$ is the temperature of the cold reservoir and $T_1$ is the temperature of the hot reservoir.The formula for the coefficient of performance depends only on the temperatures of the reservoirs.The mass of the working substance does not appear in this expression.Therefore, increasing the mass of the working substance does not change the coefficient of performance.

Can the coefficient of performance of a refrigerator be increased by increasing the mass of the working substance?

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