`CuSO_(4) .5H_(2)O_((g)) hArr CuSO_(4), 3H_(2)O_((s)) + 2H_(2) O_((g)) , K_(p) = 4 xx 10^(-4) atm^(2)`. If the vapour pressure of wateris 38 torr then percentage of relative humidity is: (Assume all data at constant temperature)
A
4
B
10
C
40
D
none of these
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The correct Answer is:
c
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