# Question: When running a refrigerator exhausts heat to the kitchen at

When running, a refrigerator exhausts heat to the kitchen at a rate of 10 kW when the required input work is done at a rate of 3.0 kW.

(a) At what rate is heat removed from its cold interior?

(b) What is the COP of the refrigerator?

(a) At what rate is heat removed from its cold interior?

(b) What is the COP of the refrigerator?

## Relevant Questions

A refrigerator with a COP of 2.2 removes 4.2 x 105 J of heat from its interior each cycle. (a) How much heat is exhausted each cycle? (b) What is the total work input in joules for 10 cycles? A gasoline engine has a thermal efficiency of 25.0%. If heat is expelled from the engine at a rate of 1.50 x 106 J/h, how long does the engine take to perform a task that requires an amount of work of 1.5 x 106 J? An engineer wants to run a heat engine with an efficiency of 40% between a high-temperature reservoir at 300 oC and a low-temperature reservoir. What is the maximum Celsius temperature of the low-temperature reservoir? An ideal gas expands from 1.0 m3 to 3.0 m3 at atmospheric pressure while absorbing of heat in the process. (a) The temperature of the system (1) increases, (2) stays the same, (3) decreases. Explain. (b) What is the change ...An ideal heat pump is equivalent to a Carnot engine running in reverse. (a) Show that the Carnot COP of the heat pump is COPC = 1/εC where εC is the Carnot efficiency of the heat engine. (b) If a Carnot engine has an ...Post your question