A) $Q _ { 1 } \text { to } Q _ { 2 }$
B) $Q _ { 1 } \text { to } Q _ { 3 }$
C) $Q _ { 2 } \text { to } Q _ { 3 } \text {. }$
D) $Q _ { 2 } \text { to more than } Q _ { 3 } \text {. }$

Question

A) $Q _ { 1 } \text { to } Q _ { 2 }$ 
B) $Q _ { 1 } \text { to } Q _ { 3 }$ 
C) $Q _ { 2 } \text { to } Q _ { 3 } \text {. }$ 
D) $Q _ { 2 } \text { to more than } Q _ { 3 } \text {. }$

Quizplus · Accepted Answer

The graph shows a vertical line at Q3, indicating that the vapor pressure has reached the maximum pressure that can be achieved by the system at that temperature. Therefore, no matter how much more quantity of the solute is added, the vapor pressure will remain the same. Thus, the best choice is from Q1 to Q3, as adding the solute gradually decreases the vapor pressure of the solution.

A) Q1 to Q2Q _ { 1 } \text { to } Q _ { 2 }Q1​ to Q2​

A) $Q _ { 1 } \text { to } Q _ { 2 }$