A Knudsen cell can be used to measure ______ of a material.
A、themolarmass;
B、thetemperature;
C、vaporpressure;
D、averagespeed
发布时间:2025-08-04 05:04:28
A、themolarmass;
B、thetemperature;
C、vaporpressure;
D、averagespeed