1. Consider the following thermodynamic systems:i) Pressure cookerii) A rubber balloon filled with airiii) Hot tea in a cupiv) The Universev) A beaker filled with watervi) Oceanvii) Hot water in a teapotDifferentiate the above mentioned systems as Isolated system, Closed system or Open system. Give an appropriate reason for your answer.2. In a process there is heat transfer loss of 1055 kJ and an internal energy increase of 210 kJ. Determine the work transfer.3. During the working stroke of an engine the heat transferred out of the system was 150 kJ of the working substance. If the work done by the engine is 250 kJ, determine the change in internal energy and state whether it is decreased or increased.4. How much heat must be absorbed by 375 grams of water to raise its temperature by 25° C?5. What is the final temperature when 625 grams of water at 75.0° C loses 7.96 x 104 J?6. Modern automobile gasoline engines have efficiencies of about 25%. About what percentage of the heat of combustion is not used for work but released as heat?(a) 25%,(b) 50%,(c) 75%,(d) 100%,(e) You cannot tell from the data given.7. To increase the efficiency of a Carnot engine, you should(a) decrease the temperature of the hot reservoir,(b) increase the temperature of the cold reservoir,(c) increase the temperature of the hot reservoir8. If a heat engine does 100 kJ of work per cycle while releasing 400 kJ of heat, what is its efficiency?(a) 20%,(b) 25%,(c) 80%,(d) 400%,(e) You cannot tell from the data given.9. If the heat absorbed by a heat engine is 600 kJ per cycle, and it releases 480 kJ of heat each cycle, what is its efficiency?(a) 20%,(b) 80%,(c) 100%,(d) You cannot tell from the data given.10. A Carnot engine operates between a cold temperature reservoir of 27o C and a high temperature reservoir of 127°C. Its efficiency is(a) 21%,(b) 25%,(c) 75%,(d) 79%.11. The Carnot engine in Problem 10 is run in reverse as a refrigerator. Its COP is(a) 0.33,(b) 1.3,(c) 3.0(d) 4.712. On a humid day, water vapor condenses on a cold surface. During condensation, the entropy of the water (a) increases, (b) remains constant, (c) decreases, (d) may decrease or remain unchanged. Explain your answer.13. If I know that the change in entropy of a system where heat was added is 20 J/K, and that the temperature of the system is 300 K, what is the amount of heat added to the system?