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The temperature of 100g of water is to b...

The temperature of 100g of water is to be raised from `24^@C` to `90^@C` by adding steam to it. Calculate the mass of the steam required for this purpose.

A

10g

B

12g

C

14g

D

16g

Text Solution

Verified by Experts

The correct Answer is:
B
Let m be the mass of steam required. By the principle of calorimetry
`100 xx 1 xx (90-24) = m xx 540 + m xx 1 xx (100-90)`
or `550m = 100 xx 66 or m = 12g`
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