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1.
Standard enthalpy of vapourisation 
for water at 
is 
The internal energy of vapourisation of water at (in 
) is:
for water at is The internal energy of vapourisation of water at (in ) is:
2.
The factor 
is equal to :
is equal to :
3.
Heat of combustion of a substance:
4.
The heat of formations of 
and 
are 
kcal and 
kcal respectively. The heat of combustion of carbon monoxide will be
and are kcal and kcal respectively. The heat of combustion of carbon monoxide will be
5.
Which reaction either endothermic or exothermic characteristics has the greater chance of occurring spontaneously?
6.
Net work done by the system in a cyclic process is equal to:
7.
A thermodynamic quantity is that:
8.
The Gibbs energy change for a reversible reaction at equilibrium is:
9.
The heat required to raise the temperature of a body by 1 K is called
10.
A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system