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GATE 2023 II Second Law of Thermodynamics II 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 %) _______.
and rejects heat to a sink at 40 The thermal efficiency of the heat engine is 55%. Determine the second law efficiency (in %) _______.- 102 attempts
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