【Daily Question】Petrochemical Deep Processing Version 2017.11.11
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Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. True or False: The density of a liquid changes significantly with pressure. ( ) Answer: Wrong
This post was last edited by Xibei Guyan on 2017-11-12 09:07. 3.jpg Wrong – the density of liquids changes significantly with temperature! The density of gases varies significantly depending on pressure and temperature! On the standard test reports for gasoline and diesel that we see, the temperature is always specified in the density column; it’s usually 20 degrees. For ethylene and propylene, the temperature and pressure must also be indicated on the standard test reports, with these values typically being those under standard conditions: 0 degrees and 103 kPa!