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11
Heat of transition is the heat evolved or absorbed, when a substance is converted from
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Answer: Option D
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12
__________ fuels require the maximum percentage of 'excess air' for complete combustion.
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Answer: Option A
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13
Atomic __________ of an element is a whole number.
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Answer: Option B
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14
A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal
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Answer: Option A
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15
The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately
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Answer: Option D
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16
An equation for calculating vapour pressure is given by, log10 P = A - B(t + c). This is called the
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Answer: Option B
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17
The combustion equations of carbon and carbon monoxide are as follows:
C + O2 = CO2, ΔH = -394 kJ/kg.mole
CO + $$\frac{1}{2}$$O2 = CO2, ΔH = -284.5 kJ/kg.mole
The heat of formation of CO is __________ kJ/kg.mole.
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Answer: Option A
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18
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
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Answer: Option C
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19
Density of carbon dioxide is __________ kg/Nm3.
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Answer: Option B
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20
Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of
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Answer: Option D
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