If there is no heat loss, the heat released by the condensation of x gram of steam at `100^@C` into water at `100^@C` can be used to convert y gram of ice at `0^@C` into water at `100^@C`. Then the ratio of y:x is nearly [Given `L_l = 80 cal//gm` and `L_v= 540 cal//gm`]

Options

A. `1:1`
B. `1:1`
C. `1:3`
D. `3:1`

Answer

C

Explanation

The heat lost in condensation `=x xx 540` cal.
`therefore x xx 540=y xx 80 +y xx 1 xx (100-0) or (x)/(y)=(1)/(3)`