1 Answer

Harsha Hulageri · Answer 1 · 2019-11-11T22:56:30+0000

Heat required in calories is given by product of mass in g and change in temperature in degree Celsius.

Formula is given by:

$Q=m* \Delta T$

where, Q = heat required in calories

m = mass of substance in g

$\Delta T$ = change in temperature in degree Celsius

Insert the given vales of mass of water and temperature in above formula, we get:

$\Delta T$ =
96.5^(o)C-34.2^(o)C

=
62.3 ^(o)C

Now,
Q=100 g* 62.3 ^(o)C

=
6230 calories

Thus, heat in kilocalories =
6.23 kilocalories

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