how fast

Question 1

how does increasing temperature affect the rate and the rate constant

Answer 1

increasing temperature increases the rate of reaction because the particles have more kinetic energy so they collide more frequently. eqm will shift in the endothermic direction

if the forwards reaction is endothermic then the Kc value will increase and so will the yield of the products

if the forwards reaction is exothermic then the Kc value will decrease and so will the yield of the products

Question 2

give two properties of a dynamic eqm

Answer 2

the forwards and backwards reaction are equal.
the conc of reactants and products are constant and interchanging.

Question 3

increasing the pressure causes eqm to shift to the ____.
this cause the value of Kc to _____.

Answer 3

side with the fewest moles.
stay the same as pressure does not effect the value of Kc.

Question 4

increasing the temperature caused the value of Kc to also decrease. what does this tell you about the forwards reaction.

Answer 4

the reaction moved to the left hand side (in the endothermic direction) meaning that the forwards reaction is exothermic.

Question 5

why is methanol added to petrol

Answer 5

this is because it adds oxygen