Gibbs-Helmholtz equation relates the free energy change to the enthalpy and entropy changes of the process as
The magnitude of 
does not change much with the change in temperature but the entropy factor 
changes appreciably. Thus, spontaneity of a process depends very much on temperature
When 
is heated to a high temperature, it undergoes decomposition into 
and
whereas it is quite stable at room temperature. The most likely explanation of it is
a)
The enthalpy of reaction 
overweigths the term
at high temperature
b)
The term
overweigths the enthalpy of reaction at high temperature
c)
At high temperature, both enthalpy of reaction and entropy change become negative
d)
None of these
does not change much with the change in temperature but the entropy factor changes appreciably. Thus, spontaneity of a process depends very much on temperatureWhen is heated to a high temperature, it undergoes decomposition into and whereas it is quite stable at room temperature. The most likely explanation of it is
a)
The enthalpy of reaction overweigths the term at high temperature
b)
The term overweigths the enthalpy of reaction at high temperature
c)
At high temperature, both enthalpy of reaction and entropy change become negative
d)
None of these
Question ID - 103875 | SaraNextGen Top Answer Gibbs-Helmholtz equation relates the free energy change to the enthalpy and entropy changes of the process as
The magnitude of does not change much with the change in temperature but the entropy factor changes appreciably. Thus, spontaneity of a process depends very much on temperature
When is heated to a high temperature, it undergoes decomposition into and whereas it is quite stable at room temperature. The most likely explanation of it is
a)
The enthalpy of reaction overweigths the term at high temperature
b)
The term overweigths the enthalpy of reaction at high temperature
c)
At high temperature, both enthalpy of reaction and entropy change become negative
d)
None of these
Gibbs-Helmholtz equation relates the free energy change to the enthalpy and entropy changes of the process as
The magnitude of does not change much with the change in temperature but the entropy factor changes appreciably. Thus, spontaneity of a process depends very much on temperature
|
When |
|
|
a) |
The enthalpy of reaction |
|
b) |
The term |
|
c) |
At high temperature, both enthalpy of reaction and entropy change become negative |
|
d) |
None of these |
|
(b)
|
,at high temperature 
factor dominates of 
and hence 
becomes negative and reaction occurs spontaneously