# Question: A system goes from state 1 to state 3 as

A system goes from state 1 to state 3 as shown on the T–S diagram in Fig. 12.25.

(a) The heat transfer for the process going from state 2 to state 3 is (1) positive, (2) zero, (3) negative. Explain.

(b) Calculate the total heat transferred in going from state 1 to state 3.

(a) The heat transfer for the process going from state 2 to state 3 is (1) positive, (2) zero, (3) negative. Explain.

(b) Calculate the total heat transferred in going from state 1 to state 3.

## Answer to relevant Questions

A quantity of ideal gas goes through an isothermal process and does 400 J of net work. (a) The internal energy of the gas is (1) higher than, (2) the same as, (3) less than when it started. Why? (b) Is a net amount of heat ...A heat engine with a thermal efficiency of does 500 J of net work each cycle. How much heat per cycle is lost to the low-temperature reservoir? 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 ...A Carnot engine has an efficiency of 30% and takes in heat from a high-temperature reservoir at 178 oC. What is the Celsius temperature of the engine’s low-temperature reservoir? An inventor claims to have created a heat engine that produces 10.0 kW of power for a 15.0-kW heat input while operating between reservoirs at 27 oC and 427 oC. (a) Is this claim valid? (b) To produce 10.0 kW of power, ...Post your question