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 + XA)
C. dXA/dt = k1 (1 XA)
D. dXA/dt = k1 (1 XA) (1 + 0.5XA)
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