Question

Boiling cannot occur if the vapor pressure of a liquid is 745 millimeters of mercury and the atmospheric pressure is 761 millimeters of mercury.

a.True
b.False

Answer 1

True.

Step-by-step explanation:

Boiling can only happen when the liquid vapor pressure is equal to the its surrounding pressure. In this case the liquid will boil when its vapor pressure rise to 761 mmHg.

Answer 2

The correct answer is A. The statement is true. Boiling happens when the pressure in a liquid sample is equal to the pressure of its surroundings or the atmospheric pressure. For this problem, we are given the pressure of the system as 745 mmHg which is clearly not equal to the atmospheric pressure of 761 mmHg therefore boiling cannot happen.