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5 marksSpecific Latent Heat, l

CSEC Physics · January 2018 · Paper 2 · Question 2(c)

The power of the electric heater used in the experiment was 100 W. Assuming no heat was lost to the surroundings, calculate the specific latent heat of vaporization of water, l_v.

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  1. 2(a)Complete Table 2 to distinguish among solids, liquids and gases using the terms 'definite/fixed', 'vibrate', 'move freely', 'very weak/negligibly weak', 'no…[7 marks]
  2. 2(b)(i)Convert the time recorded in Figure 3b to seconds.[3 marks]
  3. 2(b)(ii)Calculate the mass of water evaporated in the experiment.[3 marks]

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