Heat and Thermodynamics 1 Question 22

22. The variation of temperature of a material as heat is given to it at a constant rate as shown in the figure. The material is in solid state at the point O. The state of the material at the point P is . . .

(1985,2M)

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Answer:

Correct Answer: 22. partly solid and partly liquid.

Solution:

  1. O to A material is in solid state (only temperature is increasing).

A to B material is partially solid and partially in liquid state.

B to C material is in liquid state.

C to D material is partially liquid and partially in vapour state.



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