# Hess' Law QuestionWatch

Announcements
#1
Hi, I'm struggling on a question related to Hess' law. I just can't seem to get the maths right.

CH4(g) + H2O(g) --> CO(g) + 3H2(g)
Use the data below to calculate the enthalpy change for the forward reaction.

CO(g) + 1/2O2(g) --> CO2(g) ΔH=-283kJmol-1

H2(g) + 1/2O2(g) --> H2O(g) ΔH=-242kJmol-1

[/sup][/color][/font][/color][/font]
[/color][/font]
[/color][/font]
0
3 days ago
#2
(Original post by lmil)
Hi, I'm struggling on a question related to Hess' law. I just can't seem to get the maths right.

CH4(g) + H2O(g) --> CO(g) + 3H2(g)
Use the data below to calculate the enthalpy change for the forward reaction.

CO(g) + 1/2O2(g) --> CO2(g) ΔH=-283kJmol-1

H2(g) + 1/2O2(g) --> H2O(g) ΔH=-242kJmol-1
0
#3
(Original post by charco)
So far there is none. I just keep crossing things out!
0
X

new posts
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### University open days

• Manchester Metropolitan University
Wed, 19 Jun '19
• University of West London
Wed, 19 Jun '19
• University of Warwick
Fri, 21 Jun '19

### Poll

Join the discussion

#### How did your AQA A-level Biology Paper 2 go?

Loved the paper - Feeling positive (406)
18.61%
The paper was reasonable (1038)
47.57%
Not feeling great about that exam... (485)
22.23%
It was TERRIBLE (253)
11.59%