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Mechanical Engineering
Phase Transformation
Quiz 2
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Q.1
Boiling is ...
liquid to gas
gas to solid
gas to liquid
solid to liquid
Q.2
Change from Gas to Solid is called........
Sublimation
Deposition
Fusion
condensation
Q.3
Melting is ...
liquid to solid
solid to liquid
solid to gas
gas to liquid
Q.4
The ammonia synthesis reaction represented by N₂ + 3H₂ ⇋ 2NH₃ ; ΔH = - 22.4 kcal, is
Endothermic
Exothermic
Isothermal
Adiabatic
Q.5
If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.
Enthalpy
Volume
Both A & B
Neither A nor B
Q.6
Henry's law is closely obeyed by a gas, when its __________ is extremely high.
Pressure
Solubility
Temperature
None of these
Q.7
Sublimation temperature of dry ice (solid CO₂) is __________ °C.
-273
0
-78
5
Q.8
The equation relating E, P, V and T which is true for all substanes under all conditions is given by (∂E/∂V)T = T.(∂P/∂T)H - P . This equation is called the
Maxwell
Thermodynamic equation of state
Equation of state
Redlich-Kwong equation of state
Q.9
Which of the following is a shortcoming for using parallel connected transformers?I. Reliable loadingII. Increased capacity of power systemIII. Reducing the capacity of substation
I, II, III
I, II
I, III
None of the mentioned
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