Log in
Chemistry
1
answer
0
watching
113
views
23 Nov 2019

suppose that a reaction has H= 41kj and S= -27kj. At what temperature if any will it change between spontaneous and non spontaneous?

Watch
1
answer
0
watching
113
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Jean Keeling
Jean KeelingLv2
17 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
discord banner image
Join us on Discord
Chemistry Study Group
Join now

Related textbook solutions

Basic Chemistry
5 Edition,
Timberlake
ISBN: 9780134138046
Principles of Chemistry Molecular Approach
4th Edition,
Tro
ISBN: 9780134112831
Chemistry: Structure and Properties
2nd Edition,
Tro
ISBN: 9780134293936
Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944
Chemistry: A Molecular Approach
3rd Edition,
Tro
ISBN: 9780321809247
Chemistry: A Molecular Approach
5th Edition,
Tro
ISBN: 9780134874371
Principles of Chemistry: A Molecular Approach
4th Edition,
Tro
ISBN: 9780134895741
Chemistry: The Central Science
14th Edition, 2017
Brown
ISBN: 9780134414232

Related questions

Suppose that a rxn has ∆H = -28 kJ and ∆S= -60 J/K. At what temperature will it change from spontaneous to non-spontaneous?

Consider the following reaction: CaCO3(s)?CaO(s)+CO2(g) Estimate ?G? for this reaction at each of the following temperatures. (Assume that ?H? and ?S? do not change too much within the given temperature range.)

300 K (Spontaneous or non)

1000K (Spontaneous or non)

1455K (Spontaneous or non)

For each reaction, calculate ?H?rxn, ?S?rxn, and ?Grxn at 39?C.

Part A

N2O4(g)?2NO2(g)

Express your answer using three significant figures.
?H?rxn = kJ

Part B

N2O4(g)?2NO2(g)

Express your answer using three significant figures.
?S?rxn = J/K

Part C

N2O4(g)?2NO2(g)

Express your answer using two significant figures.
?G?rxn = kJ

Part D

State whether or not the reaction in part A is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?C?

Express your answer using three significant figures.

Express your answer using three significant figures.

The reaction is spontaneous.
The reaction can be made spontaneous by raising the temperature.
The reaction can be made spontaneous by lowering the temperature.
The reaction can not be spontaneous at any temperature.

Part E

NH4Cl(s)?HCl(g)+NH3(g)

Express your answer using three significant figures.
?H?rxn = kJ

Part F

NH4Cl(s)?HCl(g)+NH3(g)

Express your answer using three significant figures.
?S?rxn = J/K

Part G

NH4Cl(s)?HCl(g)+NH3(g)

Express your answer using three significant figures.
?G?rxn = kJ

Part H

State whether or not the reaction in part B is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?C?

State whether or not the reaction in part B is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?

The reaction is spontaneous.
The reaction can be made spontaneous by raising the temperature.
The reaction can be made spontaneous by lowering the temperature.
The reaction can not be spontaneous at any temperature.

Part I

3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)

Express your answer using three significant figures.
?H?rxn = kJ

Part J

3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)

Express your answer using three significant figures.
?S?rxn = J/K

Part K

3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)

Express your answer using three significant figures.
?G?rxn = kJ

Part L

State whether or not the reaction in part C is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?C?

State whether or not the reaction in part C is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?

The reaction is spontaneous.
The reaction can be made spontaneous by raising the temperature.
The reaction can be made spontaneous by lowering the temperature.
The reaction can not be spontaneous at any temperature.

Part M

N2(g)+3H2(g)?2NH3(g)

Express your answer using three significant figures.
?H?rxn = kJ

Part N

N2(g)+3H2(g)?2NH3(g)

Express your answer using three significant figures.
?S?rxn = J/K

Part O

N2(g)+3H2(g)?2NH3(g)

Express your answer using three significant figures.
?G?rxn = kJ

Part P

State whether or not the reaction in part D is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?C?

State whether or not the reaction in part D is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 39?

The reaction is spontaneous.
The reaction can be made spontaneous by raising the temperature.
The reaction can be made spontaneous by lowering the temperature.
The reaction can not be spontaneous at any temperature.

Weekly leaderboard

Home
Homework Help 3,900,000
Chemistry 830,000
Start filling in the gaps now
Log in