Release of Heat in kJ - Immediate Help Needed

  • #1
I am struggling with a recent chemistry lesson. Immediate help is needed and would be greatly appreciated. I know that we have to first find the limiting reagent, and then go on to determine the heat released in kiloJoules.

Homework Statement



How much heat will be released when 4.72 g of carbon reacts with excess O2 according to the following equation?

Homework Equations



C + O2 --> CO2 (Delta) H = -393.5 kJ

The Attempt at a Solution

 

Answers and Replies

  • #2
mgb_phys
Science Advisor
Homework Helper
7,774
12
How many moles of C are there in 4.72g?
The equation says you get 393.5kJ for each mole.
 

Related Threads on Release of Heat in kJ - Immediate Help Needed

  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
1
Views
13K
Replies
1
Views
1K
Replies
1
Views
13K
Replies
1
Views
17K
Replies
4
Views
12K
Replies
2
Views
13K
Replies
2
Views
1K
Replies
6
Views
18K
Top