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A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closed circulation system (as shown schematically in the figure), the water from the cooler is used to cool an external device that generates constantly 3 kW of heat (thermal load). The temperature of water fed into the device cannot exceed 300C and the entire stored 120 litres of water is initially cooled to 100C. The entire system is thermally insulated. The minimum value of P (in watts) for which the device can be operated for 3 hours is
(Specific heat of water is 4.2 kJ kg-1 K-1 and the density of water is 1000 kg m-3)
  • a)
    1600
  • b)
    2067
  • c)
    2533
  • d)
    3933
Correct answer is option 'B'. Can you explain this answer?
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A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closedcirculation system (as shown schematically in the figure), the water from the cooler is used to cool anexternal device that generates constantly 3 kW of heat (thermal load). The temperature of water fed intothe device cannot exceed 300C and the entire stored 120 litres of water is initially cooled to 100C. Theentire system is thermally insulated. The minimum value of P (in watts) for which the device can beoperated for 3 hours is(Specific heat of water is 4.2 kJ kg-1 K-1 and the density of water is 1000 kg m-3)a)1600b)2067c)2533d)3933Correct answer is option 'B'. Can you explain this answer?
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A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closedcirculation system (as shown schematically in the figure), the water from the cooler is used to cool anexternal device that generates constantly 3 kW of heat (thermal load). The temperature of water fed intothe device cannot exceed 300C and the entire stored 120 litres of water is initially cooled to 100C. Theentire system is thermally insulated. The minimum value of P (in watts) for which the device can beoperated for 3 hours is(Specific heat of water is 4.2 kJ kg-1 K-1 and the density of water is 1000 kg m-3)a)1600b)2067c)2533d)3933Correct answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closedcirculation system (as shown schematically in the figure), the water from the cooler is used to cool anexternal device that generates constantly 3 kW of heat (thermal load). The temperature of water fed intothe device cannot exceed 300C and the entire stored 120 litres of water is initially cooled to 100C. Theentire system is thermally insulated. The minimum value of P (in watts) for which the device can beoperated for 3 hours is(Specific heat of water is 4.2 kJ kg-1 K-1 and the density of water is 1000 kg m-3)a)1600b)2067c)2533d)3933Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closedcirculation system (as shown schematically in the figure), the water from the cooler is used to cool anexternal device that generates constantly 3 kW of heat (thermal load). The temperature of water fed intothe device cannot exceed 300C and the entire stored 120 litres of water is initially cooled to 100C. Theentire system is thermally insulated. The minimum value of P (in watts) for which the device can beoperated for 3 hours is(Specific heat of water is 4.2 kJ kg-1 K-1 and the density of water is 1000 kg m-3)a)1600b)2067c)2533d)3933Correct answer is option 'B'. Can you explain this answer?.
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