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What is the heat of reaction if the heat of combustion of products is 10 J and heat of combustion of reactants is 5 J?
What is the heat of reaction if the heat of combustion of products is 10 J and heat of combustion of reactants is 15 J?
What is the heat of reaction if the heat of combustion of products is 25 J and heat of combustion of reactants is 15 J?
What is the heat of reaction if the heat of combustion of products is 2 J and heat of combustion of reactants is 10 J?
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is
Which of the following statement(s) is/are true? A. An unbalanced chemical equation assumes the same number of atoms of different elements in the reactants and products. B. A balanced chemical equation assumes an unequal number of atoms of one or more elements in the reactants and products.
Which of the following statements is/are true? A. A balanced chemical equation has an equal number of atoms of different elements in the reactants and products. B. An unbalanced chemical equation has an unequal number of atoms of one or more elements in the reactants and products.
If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will
If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will
For the reaction, A = X + Y, the respective concentrations are CA, CX and CY. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf CA > kB CxCy
Q. If the reaction is irreversible than, kb CXCY = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.