Question

Questions (rate(s) and rate laws)

Enjoy

Answer 1

#1

Answer 2

#2

Answer 3

#3

Answer 4

@cuanchi @rushwr

Answer 5

#1 I haven't still done the environmental chemistry at school. But I'll go with D none of the above!

Answer 6

#1

Graph I exothermic
Graph II endothermic

Agree/disagree?

Answer 7

oh sorry my answer goes to the second one !

Answer 8

that Ozone and NO reaction

Answer 9

for the exothermic endothermic question i'll go with C
In an exothermic reaction the products are having less energy cuz in an exothermic reaction heat is lost to the surroundings !

Answer 10

the otherway round for the enothermic reaction.

Answer 11

One thing you notice is that NO remains unchanged

Answer 12

it's used in the first step of the reaction and then remains at the end of the reaction in the last step unchanged. so I would say that it's acting as a catalyst.

Answer 13

#2 A is definitely wrong because it does change the concentration of O3

Answer 14

so its gonna e B for the #2 question ?

Answer 15

259. I'll go with enthalpy change of the reaction

Answer 16

I think the issue is that NO is not present in the slow step so i thought it wouldn't cause any change. with that.

Answer 17

I think i'll go with C. catalyst only lowers activation energy but doesn't do anything else in terms of overall energy. that stay the same.

Answer 18

the energy difference between products & reactants is the same