Given the graph below, what is the boiling point of chloroform at standard press

Question

Given the graph below, what is the boiling point of chloroform at standard pressure? 77 degree C 34 degree C 98 degree C 60 degree C The graph docs not give that information. Knowing that Delta H_vap for water is 40.7 kJ/mol, calculate p_cp of water at 58 degree C 5.3 torr 456 torr 14.8 torr 759 torr 144 torr Below is a phase diagram for compound Q. You wish to purify a sample or Q that was collected at P = 1.0 atm and T = 100 K by subliming it In order to sublime the sample, you should: Increase P to J .5 aim and then increase T to 300 K. Increase T to 300 K. keeping P = 1.0 atm Lower P to 0.5 aim and then increase T to 200 K. Increase T to300 K and then lower P to 0.5 atm. Abandon the attempt to sublime Q.

Explanation / Answer

Ans 28 E

The graph shows vapour pressure with respect to change in temperature for 3 compounds. But the curve does not show any change in physical state at any point . It means the graph does not give any information about the boiling points of these compounds.

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