20. Which choice best indicates the degree of correctness of this statement? \"I

Question

20. Which choice best indicates the degree of correctness of this statement? "If two open vessels, one containing normal propanol and the other containing water, both at the same temperature, are placed side by side and, if the alcohol and the water each have the same surface area, it is reasonable to believe that the volume of normal propanol will diminish at the same rate as the water." Vapor Pressure of Substances in mmHg n-propanol water 3.4 14.5 87.2 376 697 836 4.6 17.6 92.0 354.9 ine 2.1 4.4 17.0 61.3 760 131.1 (A) The statement is true. (B) The statement is probably true; additional data would be needed for a final decision. (C) It is impossible to judge the statement because the data are insufficient. (D) The statement is probably false; additional data would be needed for a final decision. (E) The statement is false

Explanation / Answer

Ans D) the statement is probably false ; additional data would be needed for afinal decision.

Since in the table mentioned in the question iteself , the vapor pressure of n -propanol is less than that of water uptill 50 degree C , so here water must diminish first. And thereafter is the temperature is increased , we can expect propanol to evaporate and diminish first. So the statement is probably false.

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