Heat is supplied to a certain homogenesus sample of matter...

Heat is supplied to a certain homogenesus sample of matter at a uniform rate. Its temperature is plotted aganist time, as shown. Which of the following conclusions can be drawn? (a) Its specific hcal capacity is greater in the solid state than in the liquid state. (b) Its spocific heat capacity is grcater in the liquid state than in the solid 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.

Heat is supplied to a certain homogenesus sample of matter at a uniform rate. Its temperature is plotted aganist time, as shown. Which of the following conclusions can be drawn?
(a) Its specific hcal capacity is greater in the solid state than in the liquid state.
(b) Its spocific heat capacity is grcater in the liquid state than in the solid 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.

Key Concepts

Latent Heat of Vaporization

The latent heat of vaporization is the heat energy required to convert a substance from a liquid state to a gaseous state at its boiling point without a change in temperature. This value is typically higher than the latent heat of fusion, as it involves breaking intermolecular attractions in the liquid phase.

Latent Heat

Latent heat refers to the amount of heat energy needed for a substance to undergo a phase change at a constant temperature and pressure. This energy is used to overcome the intermolecular forces during transitions (e.g., from solid to liquid or liquid to gas) rather than increasing the temperature.

Latent Heat of Fusion

The latent heat of fusion is the heat energy required to change a substance from a solid state to a liquid state at its melting point without changing its temperature. It reflects the energy needed to break the bonds holding the solid together.

Heating Curve

A heating curve is a graph that shows how the temperature of a substance changes as heat is added. It typically features segments where the temperature increases (indicating sensible heat absorption) and flat segments where the temperature remains constant during phase changes (indicating latent heat absorption).

Specific Heat Capacity

Specific heat capacity is a property of a substance that indicates how much heat energy is required to raise the temperature of a unit mass of the substance by one degree Celsius. Differences in specific heat capacity are observed in different phases (such as solids and liquids), affecting how quickly their temperatures change when heat is added.

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