Home/ Questions/Q 430538
Next
In Process
Ishat Lal Bumb
Asked: 2022-11-05T11:21:36+05:30 In:

A boy after swimming comes out from a pool covered with a film of water weighing 80 g .How much heat must be supplied to evaporate this water ? `(Delta_(v) H^(@)=40.79 kJmol^(-1))`
A. `1.61 xx10^(2) kJ`
B. `1.71 xx 10^(2)kJ`
C. ` 1.81xx10^(2) kJ `
D. ` 1.91 xx 10^(2) kJ `

A boy after swimming comes out from a pool covered with a film of water weighing 80 g .How much heat must be supplied to evaporate this water ? `(Delta_(v) H^(@)=40.79 kJmol^(-1))`
A. `1.61 xx10^(2) kJ`
B. `1.71 xx 10^(2)kJ`
C. ` 1.81xx10^(2) kJ `
D. ` 1.91 xx 10^(2) kJ `
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – C
    Given `: Delta_(“vap”) H^(@) `for`H_(2)O= 40.79 kJ mol^(-1)`
    Water to be evaporated `= 80 g ( 80)/( 18) mole`
    `=4.44` mole
    Heat required for evaporated of 1 moleof `H_(2)O =40.79kJ`
    `:. `Heat required for evaporated of 4.44 moleof`H_(2)O=40.79 xx 4.44 = 1.81 xx 10^(2) kJ`

    • 0