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1.
Vibrational energy is:
2.
The relation 
was given by
was given by
3.
Calculate the free energy change of
Given,
kJ per mol
J per mol per K
Given,
kJ per mol J per mol per K
4.
The bond dissociation energy of B-F in 
is 
, whereas that of C-F in 
is 
. The correct reason for higher B-F bond dissociation energy as compared to that of C-F is :
is , whereas that of C-F in is . The correct reason for higher B-F bond dissociation energy as compared to that of C-F is :5.
When water is added to quick lime, the reaction is :
6.
An engine operating between 
and 
takes 500 J heat from a higher temperature reservoir if there are no frictional losses, then work done by engine is
and takes 500 J heat from a higher temperature reservoir if there are no frictional losses, then work done by engine is
7.
Least random state of water is:
8.
Given that standard heat enthalpy of 
are 
The 
for 
is :
are The for is :
9.
Absorption of gasses on solid surface is generally exothermic because
10.
Energy equivalent to one erg, one joule and one calorie are in order: