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NEETPhysicsThermal Properties of Matter

Statement (I) : A device in which heat measurement can be made is called calorimeter. Statement (II) : Skating is possible on snow due to the formation of water below the skates. Water is formed due to the increase of temperature and ice melts. Statement (III) : Two bodies at different temperature are mixed in a calorimeter. Total internal energy of the two bodies remains conserved. Which of the following is correct?

Options

  1. AStatements I, II and III are true
  2. BStatement I is true, but statements II and III are false
  3. CBoth statements I and II are true, but statement III is false
  4. DBoth statements I, III are true, but statement II is false

Correct answer

D. Both statements I, III are true, but statement II is false

Step-by-step solution

While skating a person pressure the snow downwards with his weight due to which melting point of ice lowers and ice melt into water, which acts as a lubricant for skates. So, (II) is false. And, statement (I) and (II) are correct

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