Question

A metal ball of mass 0.1 kg is heated upto500°C and dropped into a vessel of heat
capacity 800 JK-1 and containing 0.5 kg water.
The initial temperature of water and vessel is 30°C. What is the approximate percentage
increment in the temperature of water?


[Specific Heat Capacities of water and metal
are respectively, 4200 Jkg-1 K-1 and 400 Jkg-1
K-1]


(1) 30%
(2) 20%
(3) 25%
(4) 15%​

Answer 1

In my, answer the answer may be 25 % .

dear

Answer 2

Answer:

the right answer is 20%

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