The vapour pressure of two liquids \( \mathrm{X} \) and \( \mathrm{Y} \) are 80 and 60 torr resp...

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The vapour pressure of two liquids \( \mathrm{X} \) and \( \mathrm{Y} \) are 80 and 60 torr respectively. The total vapour pressure of the ideal solution obtained by mixing 3 moles of \( X \) and 2 moles of \( Y \) would be
(a) 68 Torr
(b) 140 Torr
(c) 48 Torr
(d) 72 Torr
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