Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
The equilibrium is shifted to the left
The equilibrium is shifted to the right
There is no effect
More H2(g) is produced
Correct answer is C
When amount / volume of gaseous reactants equal amount / volume of gaseous products, the change in pressure has no effect on the equilibrium position.
A catalyst increase the rate of a chemical reaction by providing a path that?
raise the activiation energy
increase the temperature
lowers the activation energy
increase the concentration
Correct answer is C
The rate of a reaction can be increased by adding a suitable catalyst.
A catalyst is a substance which increases the rate of a chemical reaction but it is not used up (remains chemically unchanged at the end).
It provides an alternative reaction pathway of lower activation energy.
X
Y
Z
R
Correct answer is D
No explanation has been provided for this answer.
remain unchange
increase
decrease
change
Correct answer is B
When two or more gases are mixed together at constant volume, there is an increase in entropy.
not feasible
at equilibrium
feasible
exothermic
Correct answer is C
For a reaction to be feasible, ΔG has to be negative.