1.

If accidentally the calorimeter remained open to atmosphere was for some time during the experiment, due to which the steady state temperature comes out to be 30^(@)c, then total heat lost to surrounding during the experiment, is (Use the specific heat capacity of the liquid from previous question).

Answer»

`20 kcal`
`15 kcal`
`10 kcal`
`8 kcal`

Solution :Heat given by the sphere
`=(1000)(1//2)(80-30)=25,000 cal`
Heat absorted by the water CALORIMETER SYSTEM
`=(900)(1)(40-30)+(200)(1//2)(40-30)`
`=10,000 cal`
So heat LOSS to surrounding `=15,000 cal`


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