A solid material is supplied with heat at a constant rate. The temperature of the material is ch...

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A solid material is supplied with heat at a constant rate. The temperature of the material is changing with the heat input as shown in figure-1.24. Study the graph carefully and answer the following questions :
(i) What do the horizontal regions \( A C \) and \( C D \) represent ?
(ii) If \( C D=2 B A \), what do you infer ?
(iii) What does slope \( D E \) represent?
(iv) The slope of \( O A \) the slope of \( B C \). What does this indicate?
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