Search
.Management Sciences
Category: Chemical Reaction
The rate at which a chemical substance reacts is proportional to its____________________?
0
A. Active mass
B. Equivalent weight
C. Molecular weight
D. None of these
On application of pressure to the equilibrium system, ice ⇌ water; which of the following phenomenon will occur ?
A. Water will evaporate
B. Equilibrium will not be attained
C. More ice will be formed
D. More water will be formed
The rate of reaction of a/an ______________ reaction is not affected by temperature rise ?
A. Autocatalytic
B. Photochemical
C. Consecutive
D. Zero order
Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually ________________ the concentration of catalyst, if it does not entail a chain mechanism?
A. Proportional to
B. Independent of
C. Inversely proportional to
D. Proportional to the square of
For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant ?
A. Is independent of pressure
B. Increases with pressure
C. Decreases with pressure
D. Increases /decreases with pressure depending on the stoichiometric co-efficients of the
reaction
Half life period of a first order irreversible reaction A → B is ______________________?
A. k/2
B. ln k/2
C. ln 2/k
D. ln 0.5/k
The rate at which a chemical substance reacts is proportional to its _____________________?
A. Active mass
B. Molecular weight
C. Equivalent weight
D. Atomic weight
Transition state theory gives the rate constant as__________________?
A. K α e-E/RT
B. K α eE/RT
C. K α T . e-E/RT
D. K α √T . e-E/RT
Recent Comments