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Stoichiometry

Stoichiometry
Kopp's rule is concerned with the calculation of

Surface tension
Viscosity
Thermal conductivity
Heat capacity

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Stoichiometry
Dry air is a mixture of

Vapors
Neither A nor B
Both A & B
Gases

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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
Nearnst heat theorem
Trouton's rule
Kopp's rule

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Stoichiometry
The heat evolved in the combustion of benzene is represented by the equation: C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole.

-2448.45
+816.15
-1632.3
+1632.3

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Stoichiometry
One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to

1335
1735
1525
1225

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Stoichiometry
For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)

Δ H
>ΔH

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MORE MCQ ON Stoichiometry

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