Question

Which of the following statements concerning the reaction shown below are true?

N2 (g) + O2 (g) → 2NO (g) ∆H = +181 kJ

Answer 1

The following?

Answer 2

yes

Answer 3

these are for a test review, only a couple practice problems i would like help on

Answer 4

Ok. The question mentioned following statements. Can you post them?

Answer 5

I. heat is absorbed
II. heat is released
III. rxn is exothermic
IV. rxn is endothermic
V. products have higher enthalpy content than reactants
VI. reactants have higher enthalpy content than products
Answer

I, IV, and V

II, III, and V

II, III, and VI

I and IV

there are as of the previous but here they are

Answer 6

Ok, thanks. I can't remember them from the last one. :)

Answer 7

i forget you cant look back either, ha my bad

Answer 8

So this time change in enthalpy is positive. What does that mean?

Answer 9

No worries. :)

Answer 10

heat is absorbed

Answer 11

making it endothermic

Answer 12

Sweet!

Answer 13

And do the reactants or products have more enthalpy?

Answer 14

would the reactants still have more heat?

Answer 15

No, for endothermic reaction, the products have more energy.

Answer 16

Reactants + heat -> products

Answer 17

oh now i see, that is easy to remember

Answer 18

So the energy from the reactants and the heat goes into the products.

Answer 19

:)

Answer 20

thanks so much for the help, i have that concept now. on my review i really have only one more question haha

Answer 21

Great! Ok. :)

Answer 22

as in one more question i dont understand it ahaha

Answer 23

Hehe

Answer 24

you are a walking periodic table lol, off to the next one

Answer 25

Haha, thanks!