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The amount of steam at 100^@ C that shou...

The amount of steam at `100^@ C` that should be passed into `600 g` of water at `10^@ C` to make the final temperature as `40^@ C` will be

A

40 g

B

30 g

C

20 g

D

45 g

Text Solution

Verified by Experts

The correct Answer is:
B
Heat lost by steam = Heat gained by water
`m_(steam) xxL_(v)+m_(steam)S_(w)(100^@-40^@) = m_(water) S_(w)(40^@-10^@)`.
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