Properties Of Solids And Liquids Question 395

Question: Assuming no heat losses, the heat released by the condensation of x g of steam at $ 100{}^\circ C $ can be used to convert y g of ice at $ 0{}^\circ C $ into water at$ 100{}^\circ C $ , the ratio x:y is:

Options:

A) 1 : 1

B) 1 : 2

C) 1 : 3

D) 3 : 1

Show Answer

Answer:

Correct Answer: C

Solution:

[c] The heat lost in condensation $ =x\times 540 cal $ .

$ \therefore x\times 540=y\times 80+y\times l\times ( 100-0 ) $ or $ \frac{x}{y}=\frac{1.}{3} $ .



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