[學科] 普化:兩提溶液的問題
1.The vapor pressure of a dilute solution of a nonvolatile solution is
A. greater than that of the pure solvent
B. less than that of the pure solvent
C. equal to that of the pure solvent
D. equal to that of the pure solute
E. none of these
答案:D
請問為何不是B呢?
2.In many ways, the properties of dissolution-precipitation equilibria closely
parallel those of vaperization-condensation equilibria. For example, the
case of a vapor present in a closed container in the absence of the
condensed phase is analogous to
A. a saturated solution
B. a supersaturated solution
C. an unsaturated solution
D. a concentrated solution
E. none of these
答案B 請問為何不是C呢?
請多指教
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