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One calorie of heat is equivalent to 4.2...

One calorie of heat is equivalent to `4.2J`. BTU (British Thermal Unit) is equivalent to `1055J`. The vlaue of on BTU in calorie is

A

`251.2cal`

B

`200 cal`

C

`263 cal`

D

None of these

Text Solution

Verified by Experts

(a) `:'4.2J=1cal`
`:.1J=14.2cal :. 1055J=1/4.2xx1055cal =251.2cal`
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