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Stoichiometry

Stoichiometry
The value of the gas-law constant 'R' is 1.987

Both B & C
Kcal/kg-mole.°K
Kcal/kg-mole.°C
Btu/lb-mole.°R

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Stoichiometry
Which of the following expressions defines the Baume gravity scale for liquids heavier than water?

145 - (145/G)
(400/G) - 400
(141.5/G) - 131.5
200(G-1)

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Stoichiometry
The osmotic pressure of a solution increases, if its __________ is decreased.

None of these
Temperature
Solute concentration
Volume

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Stoichiometry
Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is

18.33 kJ
18.11 kJ
16.15 kJ
10.73 kJ

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Stoichiometry
Enthalpy of formation of NH₃ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH₃ → N₂ + 3H₂, is equal to __________ kJ/kg. mole.

92
-92
-23
46

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Stoichiometry
The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements. This is the statement of

Law of Petit and Dulong
Trouton's rule
Nearnst heat theorem
Kopp's rule

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