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Thermal Propert...

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  • Question 1
    4 / -1

    2 g f steam condenses when passed through 40 g of water initially at 25oC. The condensation of steam raises the temperature of water to 54.3oC. What is the latent heat of steam?

  • Question 2
    4 / -1

    The freezing point of the liquid decreases when pressure is increased, if the liquid

  • Question 3
    4 / -1

    The relative humidity on a day, when partial pressure of water vapour is 0.012 × 105 Pa at 12oC (take vapour pressure of water at this temperature as 0.016 × 105 Pa) is

  • Question 4
    4 / -1

    A hammer of mass 1 kg having speed of 50 m/s, hit a iron nail of mass 200 g. If specific heat of iron is 0.105 cal/goC and half the energy is converted into heat, the raise in temperature of nail is

  • Question 5
    4 / -1

    Latent heat of 1 g of steam is 536 cal/g, then its value in joule/kg is

  • Question 6
    4 / -1

    Which of the following has maximum specific heat?

  • Question 7
    4 / -1

    A stationary object at 4oC and weighing 3.5 kg falls from a height of 2000 m on a snow mountain at 0oC. If the temperature of the object just before hitting the snow is 0oC and the object comes to rest immediately (g = 10 m/s2) and (latent heat of ice 3.5 × 105 J/s), then the mass of ice that will melts is

  • Question 8
    4 / -1

    300 g of water at 25oC is added to 100 g of ice at 0oC. The final temperature of the mixture is

  • Question 9
    4 / -1

    A lead bullet strikes against a steel plate with a velocity 200 ms–1. If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, then he rise in temperature of the bullet is (specific heat capacity of lead = 125 J kg–1 K–1)

  • Question 10
    4 / -1

    A glass flask is filled up to a mark with 50 cc of mercury at 18oC. If the flask and contents are heated to 38oC, how much mercury will be above the mark? (α for glass is 9 × 10–6/oC)

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