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A well insulated substance in solid stat...

A well insulated substance in solid state is heated at a constant rate until it vaporizes completely. The temperature-time graph of the substance is shown below . Which of the following statements is//are true?

A

(a)The specific heat capacity of the substance in solid state is greater than that of the substance in liquid state.

B

(b)The specific latent heat of fusion of the substance is greater than the specific latent heat of vaporization of the substance.

C

(c)If the rate of heating increases, the slope of `AB` will be increased but the length of `BC` remains unchanged.

D

(d)If the mass of the substance is doubled, the length of `DE` is also doubled but the slope of `CD` is halved.

Text Solution

Verified by Experts

The correct Answer is:
B, D
`(B) L_(f) prop BC` & ` L_(V) prop DE`
`(D) DE prop m`, slope of `CD prop (1)/(m)`
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ALLEN -GEOMETRICAL OPTICS-EXERCISE -02
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