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Steam at 100^(@)C is added slowly to 140...

Steam at `100^(@)C` is added slowly to 1400 gm of water at `16^(@)C` until the temperature of water is raised to `80^(@)C`. The mass of steam required to do this is (`L_(V)`= 540 cal/g)

A

160 g

B

120 g

C

250 g

D

320 g

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The correct Answer is:
A
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