Which of the following is not endothermic in nature ?

Related Mcqs:

Catalyst is a substance, which ________________ chemical reaction?

A. Increases the speed of a B. Decreases the speed of a C. Can either increase or decrease the speed of a D. Alters the value of equilibrium constant in a reversible...

Promoter_____________________?

A. Initiates a chemical reaction and is a catalyst by itself B. Alters the position of equilibrium in a reversible reaction C. Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals D. All A., B. and C....

The effectiveness factor for large value of Thiele modulus [L√(K/D1)] of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm2/second) ?

A. L √(K/D1) B. 1/[L√(K/D1)] C. 1 D. ∞...

Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?

A. Pore diffusion B. Gas film C. Chemical reaction D. None of these...

Collision theory gives the rate constant for bimolecular reaction as___________________?

A. K α √T.e-E/RT B. K α eE/RT C. K α e-E/RT D. None of these...