What is the role of a catalyst in a catalysed reaction

What is the role of a catalyst in a reversible reaction?

What is the role of a catalyst in a reaction?

a) What is the role of catalyst in a reversible reaction? b) is it beneficial to add a catalyst in a system which has already attained equlibrium? Explain the answer. c) Which is the catalyst used in 'Haber process'?

The role of a catalyst in a reversble reaction is to

The role of a catalyst in a reversble reaction is to