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A vessel contains 110 g of water. The he...

A vessel contains `110 g` of water. The heat capacity of the vessel is equal to `10 g` of water. The initial temperature of water in vessel is `10^(@)C`. If `220 g` of hot water at `70^(@)C` is poured in the vessel, the final temperature neglecting radiation loss, will be

A

70°C

B

80°C

C

60°C

D

50°C

Text Solution

Verified by Experts

The correct Answer is:
D
Heat loss = heat gain
`rArr 220 xx 1 xx (70 - theta) = 110 xx 1 (theta - 10) + 10 (theta - 10)`
`rArr theta - 48.8^@ C ~~ 50^(@)C`.
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