menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
The thermal effect of water formation reaction is 286 kJ. what will be the thermal effect of its decomposition. Why?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
The thermal effect of water formation reaction is 286 kJ. what will be the thermal effect of its decomposition. Why?
asked
Feb 11, 2020
140k
views
5
votes
The thermal effect of water formation reaction is 286 kJ. what will be the thermal effect of its decomposition. Why?
Chemistry
middle-school
Wood
asked
by
Wood
8.1k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
5
votes
Answer:
286 kJ
Step-by-step explanation:
The heat change value in the forward reaction is equal to the heat change value in the reverse reaction.
The only thing that changes is the sign on the heat value, such that if the forward reaction is endothermic then the reverse reaction is exothermic.
In this case;
The enthalpy change of formation of water is -286 kJ/mol, this means that the reaction of formation of water is an exothermic reaction.
The decomposition of water which is the reverse of formation has an enthalpy change of +286 kJ, the reaction is an endothermic reaction.
Therefore, the thermal effect of decomposition of water has the same value as the the thermal effect of formation which is 286 kJ
Vicg
answered
Feb 17, 2020
by
Vicg
6.9k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Sep 12, 2020
93.4k
views
The thermal effect of the water formation reaction is 286 kj.what will be the thermal effect of its decomposition?why?
KarolDepka
asked
Sep 12, 2020
by
KarolDepka
8.1k
points
Chemistry
middle-school
1
answer
2
votes
93.4k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
Compare and contrast an electric generator and a battery??
How do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types? *c2h4+h2o *c3h8 + hcl *c2h2+br2 *c4h10+br2 *c3h6+br2
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org