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NEETPhysicsThermal Properties of Matter

Two different liquids of same mass are kept in two identical vessels, which are placed in a freezer that extracts heat from them at the same rate causing each liquid to transform into a solid. The schematic figure below shows the temperature T vs time t plot for the two materials. We denote the specific heat in the liquid statusto be C_ L 1 and C_ L 2 for materials 1 and 2 respectively, and latent heats of fusion U₁

Options

  1. AC_ L1 >C_ L 2 and U₁ < U₂
  2. BC_ L 1 > C _ L 2 and U ₁> U ₂
  3. CC _ L1 < C _ L 2 and U ₁> U ₂
  4. DC_ L1 < C _ 2 and U₁ < U₂

Correct answer

C. C _ L1 < C _ L 2 and U ₁> U ₂

Step-by-step solution

Let Refrigerater extract Q joul/per second Q.t ms ( T _ f - T ) Higher the specific heat, Higher the slope

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