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GATE 2023 II Thermodynamics II Rank Booster Quiz 40

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Question 1

Which law of thermodynamics will be violated, if the thermal efficiency of an engine becomes 100%?

Question 2

In a Carnot Engine, when working substance gives heat to the sink_____

Question 3

Which of the following violate the second law __________?

Question 4

Perpetual motion machine of second kind violates the

Question 5

A heat engine operates between three thermal reservoirs. It absorbs 258 kJ of energy as heat from a reservoir at 520C and rejects 100 kJ and 88 kJ of energy as heat to reservoirs at 270C and 20C repectively.It delivers 70 kJ of work.This heat engine _______.

Question 6

A heat engine receives heat from the source at 1400 and rejects heat to a sink at 40 The thermal efficiency of the heat engine is 55%. Determine the second law efficiency (in %) _______.

Question 7

Which of the following is acceptable phrase of the Kelvin-Planck statement of the 2nd law of thermodynamics ___________.
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