Question

Heat is supplied to a certain homogeneous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn? .

• A. Its specific heat capacity is greater in the solid state than in the liquid state.
• B. Its specific heat capacity is smaller in the solid state than in the liquid state.
• C. Its latent heat of vaporization is greater than its latent heat of fusion.
• D. Its latent heat of vaporization is smaller than its latent heat of fusion.

Answer 1

The correct option is C Its latent heat of vaporization is greater than its latent heat of fusion.

The horizontal part of the curve ,where the system absorbs heat at constant temperature must depict changes of state.Here the latent heats are proportional to length of the horizontal part. In the loping parts specific heat capacity is inversely proportional to the slopes.

Option $C$ Its latent heat of vaporization is greater then its latent heat of fusion.