Chemical Engineering > GATE 2011 > Selectivity and Yield
Reactant R forms three products X, Y and Z irreversibly, as shown below.
R → X, Y, Z
The reaction rates are given by rX=kXCR, rY=kYCR1.5 and rZ=kZCR. The activation energies for formation of X, Y and Z are 40, 40 and 5 kJ/mol respectively. The pre-exponential factors for all reactions are nearly same. The desired conditions for MAXIMIZING the yield of X are
A
high temperature, high concentration of R
B
high temperature, low concentration of R
C
low temperature, high concentration of R
D
low temperature, low concentration of R

Correct : d

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