C3 - Reversible Reactions Flashcards Preview

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Flashcards in C3 - Reversible Reactions Deck (11):
1

Why do reversible reactions occur in closed systems?

Nothing can escape so the products & reactants can find balance.

2

What does the position of equilibrium in a reversible reaction depend on? [2]

Temperature & pressure.

3

Why would someone deliberately alter the position of equilibrium in a reversible reaction?

To get more product.

4

What would happen if you raised the temperature of a reversible reaction and why?

The endothermic reaction would increase to use up the extra heat.

5

What would happen if you lowered the temperature of a reversible reaction and why?

The exothermic reaction would increase to give out more heat.

6

What type of process is bond-breaking?

Bond-breaking is an endothermic process.

7

What type of process is bond-making?

Bond-making is an exothermic process.

8

What would happen if you raised the pressure of a reversible reaction?

It would encourage the reaction which produces less.

9

What would happen if you lowered the pressure of a reversible reaction?

It would encourage the reaction which produces more.

10

What effect does adding a catalyst have on the point of equilibrium of a reversible reaction and why?

It doesn't affect it because it speeds up both reactions by the same amount.

The reactions will merely reach equilibrium quicker.

11

What is a reversible reaction?

A reaction where the products react to produce the original reactants.