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Question: In an energy recycling process, X g of steam at 100<sup>0</sup>C becomes water at 100<sup>0</sup>C w...

In an energy recycling process, X g of steam at 1000C becomes water at 1000C which converts Y g of ice at 00C into water at 1000C. The ratio of X/Y will be –

A

1/3

B

2/3

C

3

D

2

Answer

1/3

Explanation

Solution

Sp. heat of vaporization = 22.68 × 105 J/kg

= X × 10–3 × 22.68 × 105

= Y × 10–3 × 3.36 × 105 + Y × 10–3 × 4200 × 100

\ XY=13\frac{X}{Y} = \frac{1}{3}