Traditional Culture Encyclopedia - The 24 Solar Terms - Factors of chemical pressure increase and decrease
Factors of chemical pressure increase and decrease
Smaller:
(1) gas becomes solid or liquid: 2h2+o2=2h2o gas pressure is obviously reduced.
(2) Endothermic reaction: Ammonium nitrate (nh4no3) is dissolved in water, and the air pressure in the endothermic bottle becomes smaller.
(3) The number of gas molecules decreases: 2co+o2=2co2.
Bigger: (1) solid or liquid becomes gas: h2co3=h2o+co2.
It is shaking the coke bottle to increase the air pressure.
(2) When calcium oxide is dissolved in water, it releases heat, and the air pressure in the closed container will increase.
(3) The number of gas molecules increases: co2+c=2co pressure increases.
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