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If there is a 10% decrease in the atmospheric pressure at a hill compared to the pressure at sea level, then the change in the boiling point of water is_____ oC.
(Take latent heat of vaporisation of water as 2270 kJ/kg and the change in the specific volume at the boiling point to be 1.2 m3/kg.)
    Correct answer is between '1.9,2.1'. Can you explain this answer?
    Most Upvoted Answer
    If there is a 10% decrease in the atmospheric pressure at a hill compa...
    Calculation of the change in boiling point of water due to a 10% decrease in atmospheric pressure at a hill compared to the pressure at sea level can be done as follows:

    1. Calculation of the new atmospheric pressure:
    The new atmospheric pressure can be calculated using the formula:
    New atmospheric pressure = (100% - 10%) x Sea level atmospheric pressure
    New atmospheric pressure = 0.9 x Sea level atmospheric pressure

    2. Calculation of the change in specific volume of water at boiling point:
    The change in specific volume of water at boiling point due to a change in pressure can be calculated using the formula:
    Change in specific volume = Specific volume at new pressure - Specific volume at sea level pressure
    Change in specific volume = 1.2 m3/kg - 0.001 m3/kg (specific volume of water at sea level pressure)

    3. Calculation of the change in boiling point of water:
    The change in boiling point of water can be calculated using the formula:
    Change in boiling point = (New atmospheric pressure - Vapor pressure at sea level) x Latent heat of vaporisation / (Density of water x Change in specific volume)
    Density of water = 1000 kg/m3

    Substituting the values in the formula:
    Change in boiling point = (0.9 x Sea level atmospheric pressure - 1 atm) x 2270 kJ/kg / (1000 kg/m3 x (1.2 m3/kg - 0.001 m3/kg))
    Change in boiling point = (0.9 x 101325 Pa - 101325 Pa) x 2270 kJ/kg / (1000 kg/m3 x 1.199 m3/kg)
    Change in boiling point = -14.5 oC

    Therefore, the change in boiling point of water due to a 10% decrease in atmospheric pressure at a hill compared to the pressure at sea level is -14.5 oC. However, the correct answer is between 1.9 and 2.1 oC, which indicates an error in the calculations. A possible reason for this error could be a mistake in the units used or the formula used for calculating the change in boiling point.
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    If there is a 10% decrease in the atmospheric pressure at a hill compared to the pressure at sea level, then the change in the boiling point of water is_____ oC.(Take latent heat of vaporisation of water as 2270 kJ/kg and the change in the specific volume at the boiling point to be 1.2 m3/kg.)Correct answer is between '1.9,2.1'. Can you explain this answer?
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    If there is a 10% decrease in the atmospheric pressure at a hill compared to the pressure at sea level, then the change in the boiling point of water is_____ oC.(Take latent heat of vaporisation of water as 2270 kJ/kg and the change in the specific volume at the boiling point to be 1.2 m3/kg.)Correct answer is between '1.9,2.1'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about If there is a 10% decrease in the atmospheric pressure at a hill compared to the pressure at sea level, then the change in the boiling point of water is_____ oC.(Take latent heat of vaporisation of water as 2270 kJ/kg and the change in the specific volume at the boiling point to be 1.2 m3/kg.)Correct answer is between '1.9,2.1'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If there is a 10% decrease in the atmospheric pressure at a hill compared to the pressure at sea level, then the change in the boiling point of water is_____ oC.(Take latent heat of vaporisation of water as 2270 kJ/kg and the change in the specific volume at the boiling point to be 1.2 m3/kg.)Correct answer is between '1.9,2.1'. Can you explain this answer?.
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