10.2

Question 1

what is le chatelier’s principle ?

Answer 1

when a system in equilibrium is subjected to a change the equilibrium will shift to minimize the change

Question 2

if the change the condition results in equilibrium shifts to the left what do we make more reactants or products ?

Answer 2

more reactants

Question 3

if the change the condition results in equilibrium shifts to the right what do we make more reactants or products ?

Answer 3

more products

Question 4

if we increase the concentration of H2 equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3 (g)

Answer 4

shifts to the right to use it up and reduce the conc so more NH3 will be produced

Question 5

if we decrease the concentration of NH3 equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3 (g)

Answer 5

shifts to the left to use it up and reduce the conc so more H2 and N2 produced

Question 6

if we increase the pressure equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3(g)

Answer 6

shifts to the side with the fewest number of gas particles this will reduce the pressure so more NH3 will be produced

Question 7

id we decrease the pressure equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3(g)

Answer 7

shifts to the side with the most number of gas particles this will increase the pressure so more N2 and H2 will be produced

Question 8

if we increase the temperature equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3(g)
= - 46.2kJ mol -1

Answer 8

shift in the endothermic direction this will reduce the temperature so more N2 and H2 will be produced

Question 9

if we decrease the temperature equilibrium will shift where ?
3H (g) + N2 (g) -> 2NH3(g)
= - 46.2kJ mol -1

Answer 9

shifts in the exothermic direction this will increase the temperature so more NH3 will be produced