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1. |
The vapour pressure lowering of 0.2 molal urea solution at 40°C is (assuming latent heat of vaporization \[(\Delta H)\] is 10 Kcal/mol.) |
A. | 0.2 torr |
B. | 0.1 torr |
C. | 0.5 torr |
D. | 0.3 torr |
Answer» B. 0.1 torr | |