E. Type IV processes are always spontancous; type I1 and IIl processes are somet
ID: 1875796 • Letter: E
Question
E. Type IV processes are always spontancous; type I1 and IIl processes are sometimes spontancous; and type processes are never spontancous For Questions 12- 15: Use the scenario described below. Two objects have different initial temperatures Ti and T. where Ti T. They are placed in contact, wrapped with perfect thermal insulation, and are allowed to come to thermal equilibrium with each other - the perfect thermal insulation does not permit any energy from the objects to escape into the surroundings, and also does not permit any energy frorn the surroundings to reach s the objects. Heat flows from the object at higher temperature to the object at lower temperature, so that at thermal equilibrium they both have exactly the same temperature T fluid in a 12) Is the following statement always true, sometimes true, or never true? to a p ns. rk done The temperature changes of the two objects (A7-T-T, and T:-T-T) are equal and opposite. A. Always B. Sometimes C. Never 13) Is the following statement always true. sometimes true, or never true? al gas The internal energy changes of the two objects are equal and opposite. A. Always B. Sometimes C. Never e its p le the its pre 14) Is the following statement always true, sometimes true, or never true? The final temperature of the two objects is somewhere between their initial temperatures: T, T> T A. Always B. Sometimes C. NeverExplanation / Answer
(12) Correct option is (B)
Answer: Sometimes
If their heat capacitites are same, then the temperaure lost by hot object is equal to temperature gain by cold object.
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(13)
Correct option is (A).
Answer: Always
In accrodance with law of conservation of energy, the internal energy chagne between the two objects is same and opposite direction.
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(14)
Correct option is (A)
The final tempeaure is somewhere between their temperatures. If their heat capacites is same, it is inbetween the two temperatures.
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