GATE ME 2017 Set 1 — Question 12
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+1 / -0EasyCoefficient of PerformanceRefrigeration & Air ConditioningThermodynamics
Thermodynamics → Refrigeration & Air Conditioning → Coefficient of Performance
Last updated
Question
A heat pump absorbs of heat from outside environment at while absorbing of work. It delivers the heat to a room that must be kept warm at . The Coefficient of Performance (COP) of the heat pump is ________.
Correct answer
1.6 to 1.7
Solution
Given:
Heat absorbed from the low-temperature reservoir (environment),
Work input to the heat pump, According to the first law of thermodynamics for a heat pump:where is the heat delivered to the high-temperature reservoir (the room).The Coefficient of Performance (COP) for a heat pump is defined as the ratio of the desired heating effect to the work input:
Heat absorbed from the low-temperature reservoir (environment),
Work input to the heat pump, According to the first law of thermodynamics for a heat pump:where is the heat delivered to the high-temperature reservoir (the room).The Coefficient of Performance (COP) for a heat pump is defined as the ratio of the desired heating effect to the work input:
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE ME question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Refrigeration & Air Conditioning
2026 Set 1 Q23For an ideal gas, starting from state point 1, two different processes take place. The…2026 Set 1 Q28For the isothermal expansion of an ideal gas in a piston cylinder system, the net heat supplied…2026 Set 1 Q44For an ideal regenerative Rankine cycle, as shown in the figure below, which one of the following…2026 Set 1 Q56A liquid comes out of the reactor of a chemical plant at temperature…2026 Set 1 Q57A rigid closed vertical cylindrical vessel of diameter contains …