Benzene and toluene form nearly ideal solution. At `20^(@)C` the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at `20^(@)C` for a solution containing 78g of benzene and 46 g of toluene in torr is-A. 50B. 25C. `37.5`D. `53.5`

Benzene and toluene form nearly ideal solution. At `20^(@)C` the vapou

1.	Benzene and toluene form nearly ideal solution. At `20^(@)C` the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at `20^(@)C` for a solution containing 78g of benzene and 46 g of toluene in torr is-A. 50B. 25C. `37.5`D. `53.5`
Answer» Correct Answer - A `P_(B)=p_(B)^(@)X_(B), therefore P_(B)=((78)/(78))/((78)/(78)+(46)/(92))xx75, therefore P_(B)=50` torr

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Benzene and toluene form nearly ideal solution. At `20^(@)C` the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at `20^(@)C` for a solution containing 78g of benzene and 46 g of toluene in torr is-A. 50B. 25C. `37.5`D. `53.5`

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