試題詳解

88. The Figure on the right shows the phase diagram for a compound X. You wish to purify a sample of X that was collected at P = 1.0 atm and T = 100 by subliming it. In order to sublime the sample, you should _____.

(A) increase T to 300 K and then lower P to 0.5 atm
(B) abandon the attempt to sublime X
(C) lower P to 0.5 atm and then increase T to 200 К
(D) increase P to 1.5 atm and then increase T to 300 K
(E) increase T to 300 K, keeping P = 1.0 atm