Answer to Question #66583 in Physical Chemistry for muhd

Question

Question 9 : The rate of chemical reaction
Remains constant as reaction proceeds
Increases as the reaction proceeds
Decreases as the reaction proceeds
Both (a) and (b)

Question 10 : The reactions catalyzed by sunlight are called ____________ reactions
Exothermic
Sun-lighted
Endothermic
photochemical

Question 11 : The reaction below is exothermic:
2
S
O
2
(
g
)
+
O
2
(
g
)
→
2
S
O
3
(
g
)
2SO2(g)+O2(g)→2SO3(g)
. Le Chatelier's Principle predicts that __________ will result in an increase in the number of moles of
S
O
3
SO3
(g) in the reaction container.
decreasing the pressure
increasing the volume of the container
increasing the pressure
removing some oxygen

Answer 1

Decreases as the reaction proceeds (but rate of chemical reaction remains constant as reaction proceeds for zero-order reactions)

photochemical

increasing the pressure