Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
In steam distillation, a liquid boils at a temperature when the sum of the vapor pressures of the organic liquid and water equals the atmospheric pressure. If the atmospheric pressure is 760 mmHg and the vapor pressure of water at the boiling temperature is 30 mmHg, what is the vapor pressure of the organic liquid at this temperature?
A
730 mmHg
B
760 mmHg
C
30 mmHg
D
790 mmHg
Correct Answer
Option A
Detailed Explanation
In steam distillation, the liquid boils when the sum of the vapor pressures of the organic liquid and water equals the atmospheric pressure: P_total = P_organic + P_water. Given P_total = 760 mmHg and P_water = 30 mmHg, P_organic = 760 - 30 = 730 mmHg.
Found an issue with this question?