Question

Chemistry kinectic

Answer 1

@Zale101

Answer 2

Any ideas?

Answer 3

in physics I learned potential mean like holding somthing and kinteic is realseing it thats all i know

Answer 4

negative

Answer 5

I'm looking at #49.

Answer 6

Take a look at the energy in KJ of the combustion located at the end of the balanced equation. Tell me the number of it.

Answer 7

but isnt that info used for the number 50?

Answer 8

Yes. What question do you need help with? You got the answer for 49?

Answer 9

I thought you wanted help for both questions.

Answer 10

yes like so how to do 49?

Answer 11

@IloveHW I want you to follow along when i asked you to type the number of the energy in KJ and i told you where it's located at. Can you please provide the number?

Answer 12

It's in your question.

Answer 13

1895?

Answer 14

Positive or negative?

Answer 15

negative

Answer 16

I see it positive.

Answer 17

You agree?

Answer 18

I mean when u take it out

Answer 19

but yea in the eqautin looks postive

Answer 20

What does that number tell you?

Answer 21

Is the system absorbing or releasing energy?

Answer 22

release

Answer 23

So if the energy is positive the system is releasing energy?

Answer 24

no absorb

Answer 25

but its not postive right you have to take it out which would make it an exothermic reaction

Answer 26

So the system is absorbing energy. Is that kinetic or potential energy?

Answer 27

potential?

Answer 28

Yes. So we eliminate choices C and D.

Answer 29

What answer do you think it is?

Answer 30

Can you describe how energy can change in a chemical reaction?

Answer 31

To get the answer for part ii, you need to know the answer on how energy change in a chemical reaction.

Answer 32

:)

Answer 33

okey how?

Answer 34

https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/thermochemistry-6/energy-57/energy-changes-in-chemical-reactions-274-3509/ Please read this page.

Answer 35

okey and on 50 I understand part 1 but not part 2

Answer 36

@iiloveHW Please refer to that page i posted. You need to understand terms like systems, surroundings, exothermic, endothermic, how chemical reactions formation. I you know all that, then you are able to understand the two questions.

Answer 37

Do you have any ideas for question 50?

Answer 38

yes I know its exotherim so its releases engery but how to do part 2 ?

Answer 39

If the energy is positive that means it absorbs enrgy meaning it is an endothermic reaction. Where do we absorb energy from?

Answer 40

so its potetial?

Answer 41

Where does the system absorb energy from?

Answer 42

envirometn?

Answer 43

Yes, that's referred to the surroundings.

Answer 44

ok now?

Answer 45

I told you all the information you need to find the answer for question 50. Do you have any ideas now?

Answer 46

yea i am confused less ptential or less kinectic?

Answer 47

Do you know the description of Le Chatelier's Principle ? if there's something in the product, then the reaction yields to the reactants. Increasing the system's temperature creates an endothermic reaction. In an endothermic reaction, energy or heat is in the reactants so that means the reaction yields to the product to counteracts the change. In your equation, does the product have more or less potential energy?