Question

Use the References to access important values if needed for this question For the gas phase isomerization of cyelobutene, (CH2)2(CH)-CH2-CHCH=CH2 the rate constant in s" has been determined at several temperatures. When In k is plotted a reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -1.64x104 K a of 30.1. The value of the rate constant for the gas phase isomerization of cyclobutene at 437 K is (Enter your answer to one significant figure.) Submit Answer Retry Entire Group 9 more group attempts remaining

Answer 1

Here we can clearly make out that value of rate constant is in s^-1 . This unit signifies that it is a first order reaction. So the first order equation for graph is :-

ln (R)= - k t + ln (R_o) and we can compare this equation with straight line equation y = m x + c.

Here the y intercept is ln(R) and slope m is -k . And x is t. Values are given for y intercept and x. Putting the values to calculate k:-

30.1 = -k * - 1.64 * 10⁷ ,

30.1 = k * 1.64 * 10⁷,

k = 18.35 * 10^-7. Answer.