A block of ice at -10° C is slowly heated and converted to steam at 100° C. Which of the following curves represents the phenomena qualitatively?

Question

A block of ice at -10° C is slowly heated and converted to steam at 100° C. Which of the following curves represents the phenomena qualitatively? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

When heat is supplied the temperature of ice increases from -10° C to 0° C. It is represented by a straight line inclined to heat axis. At 0° C the heat is used in converting ice into water at 0° C. This stage is represented by horizontal straight portion. After that temperature of water rises from 0° C to 100° C. It is represented by a straight line inclined to heat axis. At 100° C, the heat is used in converting water into steam. The graph is represented by horizontal straight line. Thus option (a) is correct.

Q. A block of ice at −10∘C is slowly heated and converted to steam at 100∘C. Which of the following curves represents the phenomena qualitatively?

Q. A block of ice at $- 1 0^{\circ} C$ is slowly heated and converted to steam at $10 0^{\circ} C$ . Which of the following curves represents the phenomena qualitatively?