Given the graph below, what is the boiling point of carbon tetrachloride at standard pressure?
A) The graph does not give this information.
B) 98°C
C) 77°C
D) 60°C
E) 34°C

Question

Given the graph below, what is the boiling point of carbon tetrachloride at standard pressure? 
A) The graph does not give this information. 
B) 98°C 
C) 77°C 
D) 60°C 
E) 34°C

Quizplus · Accepted Answer

The boiling point of carbon tetrachloride is the temperature at which its vapor pressure is equal to the atmospheric pressure at standard pressure (1 atm). From the graph, we can see that the vapor pressure of carbon tetrachloride is equal to 1 atm at around 77°C, which is the boiling point. Therefore, the answer is C.

Given the Graph Below, What Is the Boiling Point of Carbon