Reaction Feasibility

Question 1

When are reactions feasible and not feasible?

Answer 1

When ΔG negative, reaction is feasible (likely to occur)

When ΔG positive, reaction is not feasible (unlikely to occur)

Question 2

Difference between feasible and spontaneous?

Answer 2

Feasible - Reaction is energetically favourable so should go

Spontaneous - Reaction goes on its own accord

Question 3

Table to quickly summarise feasibility and how to identify which reactions are feasible quickly

Answer 3

Question 4

Example calculation

Answer 4

Question 5

How does temp affect reaction feasibility in exothermic reactions?

Answer 5

Question 6

How does temp affect reaction feasibility in endothermic reactions

Answer 6

Question 7

How do u tell which temp is required for a reaction to be feasible?

Answer 7

Set ΔG to 0 then rearrange equation for T

Question 8

How can you graph gibbs equation?

Answer 8

T is the gradient, y = mx + c

X intercept shows where reactions stops being spontaneous

Above that temp, ΔG is postive so reaction is not feasible

Y intercept shows reaction is exothermic or endothermic