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Chemical Process Calculation Questions and
Chemical Process Calculation Questions and
II
Question 1
Marks :
+2
|
-2
Pass Ratio :
100%
The Enthalpy change of a solid directly to vapour is __________
Heat of Condensation
Heat of vaporization
Heat of solidification
Heat of sublimation
Explanation:
The Enthalpy change of a solid directly to vapour is the Heat of sublimation.
Question 2
Marks :
+2
|
-2
Pass Ratio :
100%
The negative of heat of vaporization is
Heat of Condensation
Heat of fusion
Heat of solidification
Heat of sublimation
Explanation:
The negative of heat of vaporization is Heat of Condensation.
Question 3
Marks :
+2
|
-2
Pass Ratio :
100%
What is the Enthalpy change for a 10 Kg mole Oxygen gas that is heated from 200 K to 400 K at constant pressure. (Cv = 40000 J/(Kg*mole)*(Degree Celsius))
20*106
40*106
60*106
80*106
Explanation:
H2 – H1 = nCp(T2-T1).
Question 4
Marks :
+2
|
-2
Pass Ratio :
100%
An enthalpy change that involve a phase transition is
Heat of the reaction
Latent Heat
Heat of fusion
Heat of sublimation
Explanation:
An enthalpy change that involve a phase transition is Latent heat.
Question 5
Marks :
+2
|
-2
Pass Ratio :
100%
The negative of the heat of fusion is
Heat of Condensation
Heat of vaporization
Heat of solidification
Heat of sublimation
Explanation:
The negative of the heat of fusion is Heat of solidification.
Question 6
Marks :
+2
|
-2
Pass Ratio :
100%
What is the Enthalpy change for a 20 Kg mole Nitrogen gas that is heated from 100 K to 200 K at constant pressure. (Cv = 2000 J/(Kg*mole)*(Degree Celsius))
2*106
4*106
6*106
8*106
Explanation:
H2 – H1 = nCp(T2-T1).
Question 7
Marks :
+2
|
-2
Pass Ratio :
100%
An example of phase transition is
Liquid to gas phase
Gas to liquid phase
Solid to liquid phase
All of the mentioned
Explanation:
Phase change is occurring in each case.
Question 8
Marks :
+2
|
-2
Pass Ratio :
100%
The Enthalpy change for the phase transition of melting is ___________
Heat of Condensation
Heat of fusion
Heat of solidification
Heat of sublimation
Explanation:
The Enthalpy change for the phase transition of melting is the Heat of fusion.
Question 9
Marks :
+2
|
-2
Pass Ratio :
100%
An enthalpy change that does not involve a phase transition is
Latent Heat
Sensible Heat
Heat of solidification
Heat of sublimation
Explanation:
An enthalpy change that does not involve a phase transition is Sensible heat.
Question 10
Marks :
+2
|
-2
Pass Ratio :
100%
The enthalpy change for the phase transition of a liquid to a vapour is
Heat of Condensation
Heat of vaporization
Heat of solidification
Heat of sublimation
Explanation:
The enthalpy change for the phase transition of a liquid to a vapour is called Heat of vaporization.
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