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Stoichiometry

Stoichiometry
Total energy at a point comprises of __________ energy.

Pressure
Internal
All of these
Potential & kinetic

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Stoichiometry
Disappearance of snow in subzero weather exemplifies the process of

Sublimation
Vaporisation
Evaporation
Melting

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Stoichiometry
The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour

Is not dependent on the temperature
Is a function of the liquid phase composition
Measures the depression in freezing point
Measures the elevation in boiling point

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Stoichiometry
Isotonic solutions must have the same

Viscosity
Molar concentration
Normality
Critical temperature

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Stoichiometry
The combustion equations of carbon and carbon monoxide are as follows: C + O₂ = CO₂, ΔH = - 394 kJ/kg . mole CO + 1/2 O₂ = CO₂, ΔH = - 284.5 kJ/kg. mole. The heat of formation of CO is __________ kJ/kg. mole.

+109.5
+180
+100
-109.5

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Stoichiometry
The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

Becomes zero at the critical point
Decreases with increasing pressure
Both B & C
Increases with pressure rise

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