Table 1 shows the temperature dependence of a second order reaction (decompositi

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Question

Table 1 shows the temperature dependence of a second order reaction (decomposition of acetaldehyde, CH3CHO CH4 + CO) rate constant (k) in the temperature(T) range of 700-100K.

d[CH3CHO]/dt = -k[CH3CHO]2

Table 1

(a) From the integration of the rate equation shown above, obtain the expression for the concentration of CH3CHO at time t. [CH3CHO]0 represent the initial concentration of CH3CHO at t=0.

(b) [CH3CHO]0 is 1.0M. Plot the concentration of CH3CHO as a function of time in 0-600 second range at the temperature of 700K and 760K. Plot the two data in a single figure panel. When calculating the time-dependent concentration of CH3CHO, use less than 5 second interval between each time points.

T(K) 700 730 760 790 810 840 910 1000 k(M-1sec-1) 0.011 0.035 0.105 0.346 0.789 2.17 20 145

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