Question

Which of the following statements is false?

The viscosity of a liquid decreases as temperature increases.

The vapor pressure of a substance increases as temperature increases.

The vapor pressure of a substance with strong intermolecular forces is greater than that of a substance with weak intermolecular forces (at the same temperature).

A substance boils when its vapor pressure is equal to the atmospheric pressure.

The boiling point of water increases as atmospheric pressure increases.

2.

The half-life for a reaction that is first-order in A is 15 minutes. How long will it take for the concentration of A to change from 0.16 M to 0.040 M?

A(g) → B(g) + C(g)

		60 min
		45 min
		30 min
		23 min
		15 min