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The sole criterion for the spontaneity of a process is

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Important Questions on Thermodynamics

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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 25
At 27°C the reaction,
C6H6(l)+15/2O2(g)⟶6CO2(g)+3H2O(l)
proceeds spontaneously because the magnitude of
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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 28
In a reaction, all reactant and products are liquid, then
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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 29

Consider the following reaction:

C (graphite) +O2(g)→CO2(g);ΔH=-x1 cal 

C (diamond) +O2(g)→CO2(g);ΔH=-x2 cal 

What is the heat of transition of graphite into diamond?

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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 31
The heats of combustion of yellow P and red P are -9.91 kJ and -8.78 kJ respectively. The heat of transition of yellow to red phosphorus is
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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 36

S(rhombic) +O2(g)⟶SO2(g) ;  ΔH=-297.5 kJ

S(monoclinic) +O2(g)⟶SO2(g) ;   ΔH=-300 kJ

The data can predict that:

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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 38
The volume of a gas expands by 0.25 m3 at a constant pressure of 103 Nm-2. The work done is equal to (magnitude):
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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 40
The heat of neutralization of LiOH and HCl at 25°C is 34.868 kJ mol-1. The heat of ionisation ofLiOH will be
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Gamma Question Bank for Medical Chemistry>Chapter 6 - Thermodynamics>Assignment>Q 41
Which compound will absorb the maximum amount of heat when dissolved in the same amount of water? (Integral heats of solution at 25°C in kcal/mol of each solute are given in brackets)