The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene

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01/10/2020 4:54 pm

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Shaneylee18

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The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is :

(a) 156.6 g

(b) 267.4 g

(d) 467.4 g

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01/10/2020 4:58 pm

Freddie12

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Explanation:

According to Raoult's law,

2s.png

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The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene

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