Pressure and rate

Question 1

In a reaction between reacting gases an
increase in pressure

Answer 1

increases rate of reaction

Question 2

Higher pressure (graph)

Answer 2

steeper curve

Question 3

Lower pressure (graph)

Answer 3

flatter curve

Question 4

Higher pressure ->

Answer 4

same number of reactant particles in a smaller volume -> more frequent collisions -> more product forms per second -> rate of reaction increases

Question 5

ERQ - pressure and rate

Answer 5

-Increasing pressure of reacting gases increases the rate of reaction
- Same number of reactant particles in a smaller volume
- Frequency of collisions increase so more product forms per second
- Quantity of product formed stays the same
- Curve for low(est) pressure = Curve steep at the start, curve horizontal at the end, as the same quantity of product is produced
overall
- Curve for high(est) pressure = curve steepest at the start, curve horizontal at the end as the same quantity of product is produced overall