A refrigerating system operating on reversed Brayton refrigeration cycle is used

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A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg)

Options:

A . 25 kJ/kg

B . 50 kJ/kg

C . 100 kJ/kg

D . 125 kJ/kg

Answer: Option B

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