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One kg of a substance (initially solid of `0^(@)C`) is supplied heat at a concentration of 2 kcal/min. suffificent of thermal expansion of the solid `(a)=4xx10^(-6)//.^(@)C` its temperature varies with increase shown.

Specific heat capacity of the liquid is-

A

`3cal//gm^(@)C`

B

`(1)/(3) cal//gm^(@)C`

C

`2 cal//gm^(@)C`

D

`(1)/(2)cal//gm^(@)C`

Text Solution

Verified by Experts

`(dQ)/(dt)=ms(dT)/(dt)`
`2000 "cal"//"min" =1xxs_("liquid")xx(110-20)/(25-10)`
`(2000)/(6)=` s in cal/kg`.^(@)C`.
`s=(1)/(3) "cal"//gm^(@)C`
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