Thermal Properties of Matter

What is the SI unit of specific heat capacity?

Which of the following materials has the highest specific heat capacity?

The linear expansion of a metal rod is given by ΔL = αLΔT. If the temperature of the rod is increased by 50°C, what happens to the length change if the original length is doubled?

If the volume expansion coefficient of a material is β, what is the relation between β and the linear expansion coefficient α?

A metal rod of length 1 m at 20°C expands by 0.12 mm when heated to 50°C. Calculate the linear expansion coefficient α of the metal.

Which of the following statements is correct regarding the thermal conductivity of metals and non-metals?

The heat capacity of a substance depends on:

A copper wire and an aluminium wire of the same length and diameter are heated through the same temperature difference. Which wire will undergo greater increase in length? (Given α_Al = 2.3 × 10⁻⁵ K⁻¹, α_Cu = 1.7 × 10⁻⁵ K⁻¹)

During the melting of ice at 0°C, which of the following remains constant?

A metal ball just passes through a metal ring at 20°C. If both are heated to 120°C, what will happen? (Given α_ball = 12 × 10⁻⁶ K⁻¹, α_ring = 18 × 10⁻⁶ K⁻¹)