## A refrigerator is to maintain eatables kept inside at9oC . If room temperature is 36o C, calculate the coefficient of performance

A refrigerator is to maintain eatables kept inside at9oC . If room temperature is 36o C, calculate the coefficient of performance

## A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Fig. (12.13).

A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Fig. (12.13).

## An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 Joules per second. At what rate is the internal energy increasing?

An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 Joules per second. At what rate is the internal energy increasing?

## A steam engine delivers  5.4×108 J of work per minute and services  3.6 ×109 J of heat per minute from its boiler. What is the efficiency of the engine? How much heat is wasted per minute?

A steam engine delivers  5.4×108 J of work per minute and services  3.6 ×109 J of heat per minute from its boiler. What is the efficiency of the engine? How much heat is wasted per minute?

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