A)
B)
C)
D)
Correct Answer: A
Solution :
[a]: When heat is supplied, the temperature of ice increases from \[-20{}^\circ C\]to \[0{}^\circ C\]. It is represented by a straight line inclined to heat axis. At \[0{}^\circ C\], the heat is used in converting ice into water. It is represented by horizontal straight portion. After that, heat is supplied to increase the temperature of water from \[0{}^\circ C\] to \[100{}^\circ C\]. It is represented by a straight line incline to heat axis. At \[100{}^\circ C\], the heat is used in converting water into steam. It is represented by horizontal straight line. Hence option [a] is correct.You need to login to perform this action.
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