Question 305: Thermodynamics & KTG

Question

A refrigerator consumes an average 35W 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?

Accepted Answer

$${{{T_L}} \over {{T_H} - {T_L}}} = C.O.P. = {{{{dH} \over {dt}}} \over {{{dW} \over {dt}}}}$$
$${{263} \over {35}} 	imes 35 = {{dH} \over {dt}}$$
$${{dH} \over {dt}} = 263$$ watts

Answer

263 J/s

Answer

298 J/s

Answer

350 J/s

Answer

35 J/s

Thermodynamics & KTG

A refrigerator consumes an average 35W power to operate between temperature $-10^\circC to 25^\circ$C. If there is no loss of energy then how much average heat per second does it transfer?

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