Concentration of the limiting reactant (with initial concentration of – McqOptions

MCQOPTIONS

1.	Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by
A.	k. t = ln a/(a - x)
B.	k. t = x/a (a - x)
C.	k. t = ln (a - x)/a
D.	k. t = ln a (a - x)/x
Answer» B. k. t = x/a (a - x)

Discussion

No Comment Found

Related MCQs

The fractional volume change of the system for the isothermal gas phase reaction, 3 , between no conversion and complete conversion is
What is the order of a chemical reaction, , if the rate of formation of '', increases by a factor of 2.82 on doubling the concentration of '' and increases by a factor of 9 on trebling the concentration of ''?
'' plug flow reactors in series with a total volume '' gives the same conversion as a single plug flow reactor of volume '' for __________ order reactions.
6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ?
Fractional conversion __________ with increase in pressure for ammonia synthesis reaction ., N + 3H 2NH.
The dimensions of rate constant for reaction 3 are (l/gm mole)/min. Therefore the reaction order is
Reaction rate equation for the reaction, . If at is present in large excess, what is the order of this reaction?
A first order irreversible reaction, is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.
Rate of a gaseous phase reaction is given by, . The unit of rate constant is
The rate of the chemical reaction doubles as the concentration of .., is doubled. If rate of reaction is proportional to , then what is the value of for this reaction ?