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Work done in converting 1 g of ice at -1...

Work done in converting 1 g of ice at `-10^@C` into steam at `100^@C` is

A

3045 J

B

6056 J

C

721 J

D

616 J

Text Solution

Verified by Experts

The correct Answer is:
A
Ice `(-10^(@)`C converts into steam as follows
`c_(i)` = Specific heat of ice, `c_(w)`= Specific heat of water)

Total heat required Q= `Q_(1) + Q_(2) + Q_(3) + Q_(4)`
`rArr Q= 1 xx 0.5(10) + 1 xx 80 + 1 xx 1xx(100-0) + 1 xx 540`
=725 cal
Hence, work done W = JQ = `4.2 xx 725` = 3045` J
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