C5.2.3 - Concentration, pressure and reaction rate Flashcards
1
Q
What is the concentration of a solution?
A
A measure of how much solute is dissolved in the solvent
2
Q
Why do reactions go faster as the concentration increases?
A
The particles become more crowded, so they collide more often. The energy stored in the particles does not change but because the rate of collisions increases, the rate of successful collisions increases
3
Q
What is pressure?
A
The amount of force per unit area
4
Q
Why do reactions go faster at high pressure?
A
The particles in the gas state become more crowded so they collide more often. The energy stored in the particles does not change but because the rate of collisions increases, the rate of successful collisions increases
