Photo-chemical reactions occur in presence of ___________________?

Related Mcqs:

Pick out the correct statement ?

A. A catalyst speeds up the forward reaction but slows shown the reverse reaction B. Addition of catalyst changes the equilibrium constant C. Pressure changes do not change the equilibrium concentrations D. The composition of equilibrium is changed by catalyst...

The first order gas phase reaction as shown in the bellow figure is conducted isothermally in batch mode. The rate of change of conversion with time is given by________________?

A. dXA/dt = k1 (1 – XA)2 (1 + 2XA) B. dXA/dt = k1 (1 – XA) (1 + 0.5XA) C. dXA/dt = k1 (1 – XA) D. dXA/dt = k1 (1 – XA)/(1 + XA)...

A reaction which is catalysed by a base is catalysed by all substances which have a tendency to_______________________?

A. Lose a proton B. Gain a proton C. Gain an electron D. None of these...

A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be__________________?

A. 2η B. 0.5η C. η/0.693 D. 0.693η...

What is the order of chemical reaction as shown in the bellow figure, if it is found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B were doubled and quadrupled when the concentrations of both B & C were doubled ?

A. 1 B. 2 C. 3 D. 4...