Recent questions in GATE

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Calculate the thermal efficiency of the heat engine

asked Aug 29, 2017 in TD by chandu (215k points)

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Which one of the following pairs of equations describes an irreversible heat engine?

asked Aug 29, 2017 in TD by chandu (215k points)

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The entropy change of the universe is

asked Aug 29, 2017 in TD by chandu (215k points)

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If a closed system is undergoing an irreversible process, the entropy of the system

asked Aug 29, 2017 in TD by chandu (215k points)

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The change in entropy due to mixing, per mole of oxygen, is given by

asked Aug 29, 2017 in TD by chandu (215k points)

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Which of the following relationships is valid only for reversible process

asked Aug 29, 2017 in TD by chandu (215k points)

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The process to be feasible, the entropy change, S2 – S1 of the system

asked Aug 29, 2017 in TD by chandu (215k points)

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For an ideal gas the expression

asked Aug 29, 2017 in TD by chandu (215k points)

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If the heater temperature is only infinitesimally larger than the water temperature during the process

asked Aug 29, 2017 in TD by chandu (215k points)

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The slopes of constant volume and constant pressure lines in the T–s diagram are _______ and __________ respectively.

asked Aug 29, 2017 in TD by chandu (215k points)

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When a system executes an irreversible cycle:

asked Aug 29, 2017 in TD by chandu (215k points)

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Which among the following relations is/are valid ONLY for reversible process undergone by a pure substance?

asked Aug 29, 2017 in TD by chandu (215k points)

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The heat rejection in a cycle

asked Aug 29, 2017 in TD by chandu (215k points)

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The net work output (in kJ) of the cycle is

asked Aug 29, 2017 in TD by chandu (215k points)

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The rate (in kW) at which the heat pump delivers heat to its high temperature sink is

asked Aug 29, 2017 in TD by chandu (215k points)

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The maximum amount of heat in kJ that can be transferred to 400K, when the rest is rejected to a heat sink at 300K

asked Aug 29, 2017 in TD by chandu (215k points)

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If the heat engine is to deliver 2.5 kW power, then minimum area of the solar collector required would be

asked Aug 29, 2017 in TD by chandu (215k points)

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A heat engine having an efficiency of 70% is used to drive a refrigerator having a coefficient of performance of 5.

asked Aug 29, 2017 in TD by chandu (215k points)

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what is the temperature of low temperature reservoir?

asked Aug 29, 2017 in TD by chandu (215k points)

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A cyclic heat engine does 50 kJ of work pr cycle. If the efficiency of the heat engine is 75%

asked Aug 29, 2017 in TD by chandu (215k points)

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