## 8.45

$\Delta U=q+w$

Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

### 8.45

How do we know that the delta H given is KJ/ mol? Is it always assumed that it's KJ/mol?

Fayez Kanj
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am
Been upvoted: 1 time

### Re: 8.45

Hello!

Delta H is usually assumed to be KJ/mol. However, the questions in the textbook, and most likely the ones on the midterm and tests will have this specified. Always make sure that your units are matching each other in order to add/subtract two values.

Hope this helps :)

Kelsey Warren 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### Re: 8.45

Yep, delta H is assumed to be in kJ/mol if it's not specified, and also it's assumed that if delta H is given, then the reaction is at a constant pressure.