Which of the following are true statements ?

Question

a) Volatiltiy of a liquid decreases with increasing temperature

b) The equilibrium vapor pressure of a liquid results from equal rates of evaporation and condensation

c) The equilibrium vapor pressure of a liquid remains constant as temperature changes

d) The vapor pressure of a liquid at its normal boiling point is strongly affected by the type of molecules the liquid consists of

Answer 1

Only b) is true. Volatility of a liquid and equilibrium vapor pressure both increase with temperature, and every liquid has vapor pressure of 1 atm at its normal boiling point (regardless of the type of molecules in the liquid).