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Steam at 100^@C is passed into a calorim...

Steam at `100^@C` is passed into a calorimeter of water equivalent 10 g containing 74 cc of water and 10 g of ice at `0^@C`. If the temperature of the calorimeter and its contents rises to `5^@C`, calculate the amount of steam passed. Latent heat of steam`=540 kcal//kg`, latent heat of fusion`=80 kcal//kg`.

A

`2 g`

B

`0.2 g`

C

`20 g`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`(mxx540+mxx1xx95)`kcal
`=(10xx10^-3)xx80+(94xx10^-3)xx1xx5` kcal
Hence `m=2xx10^-3kg` or `2g`.
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CENGAGE PHYSICS-CALORIMETRY-Exercise 1.1
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