*Reactions involving gases are affected by the pressure of the gases present.
Low pressure= particles closer together- more collisions faster reactions
High pressure- particles spread out, less collisions, slower reactions
-Pressure only affects gases
Q. The harber process, in which nitrogen reacts with hydrogen to form ammonia, is carried out at 200 atmoshpere pressure. How and why will this affect the rate of reaction?
- The particles will be 200 times closr together and so will collide more often. The reaction will be much faster
Pressure cookers- The molecules move faster and collide more frequently and with more energy. Cooking times will be reduced.
Increased pressure= increased boiling points
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