When ice is in equilibrium with water,during equilibrium
  • Amount of ice melting is equal to amount of water freezing
  • There is no melting and no freezing
  • Amount of ice melting is more than amount of freezing
  • Amount of ice is equal to amount of water
Which is not the characteristics of equilibrium
  • Rate of forward is equal to the rate of backward reaction
  • The concentrations of reacting substances remains static
  • The pressure, temperature ,enthalpy change of the system is zero
  • Reaction completely cease at equilibrium
Equilibrium is best defined as
  • Stage where the concentration of reactants is less than that of products
  • Stage where concentration of reactants is equal to that of products
  • Stage where the rate of forward reaction is equal to that of backward reaction
  • Stage where the concentration of reactants is more than that of products
Which of the folowing characterizes Equilibrium
  • Dynamic nature
  • Requires a closed system
  • Can be physical or chemical
  • All of the above
Equilibrium can be attained in
  • all types of system
  • closed system
  • open system
  • isolated system
A moles of A reactants react with b moles of B reactants to form c moles of product C. Which of the following is true for rate of reaction
  • Rate= k[A][B]
  • Rate=k[A]a[B]b
  • Rate=k[A]a+[B]b
  • Rate=k[A]a[B]b/[C]c
Which one of the following is correct about a reversible chemical reaction at equilibrium
  • all chemical reactions have ceased
  • the rates of the forward and reverse reactions are equal
  • the rate constants of the forward and reverse reactions are equal
  • the value of the equilibrium constant is 1
Which are not the conditions of setting of an equilibrium
  • All reactions should be carried out at STP
  • All reactions should be carried out at constant temperature
  • All reactions should be carried out in open containers
  • Gaseous reactions should be carried out in closed containers
In which of the following reaction can equilibrium be attained
  • Reversible reaction
  • Cyclic reaction
  • Decomposition reaction
  • Irreversible reaction
Rate of reaction is proportional to product of molar concentration of reactants with each concentration term raised to power its stiochiometric coefficient. This is the law of
  • Equilibrium
  • Mass action
  • Constant proportion
  • Reciprocal proportions
0 h : 0 m : 1 s

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