Question asked by Filo student

1. The half-life of $222\pi n$ is $3.8$ days. A sample of $222\mathrm{Rn}$ is allowed to decay for $15.2$ days, after which, $5.6$ millimoles of $2222n$ remain. What was the initial quantity of $222Rn$ ? cis-2-butene trans-2-butene 3. The half-life $\left(t_{1/2}\right)$ if the catalyzed isomerization of cis-2-butene gas to produce trans-2-butene above, was measured under various conditions, as shown in the table below.

Irial Number	Initial $P_{\text{cis-2-butex }}(\mathrm{tom})$	$V(\mathrm{L})$	$T(\mathrm{K})$	$t_{12}(\mathrm{s})$
1	300.	$2.00$	350.	100.
2	600.	$2.00$	350.	100.
3	300.	$4.00$	350.	100.
4	300.	$2.00$	365	50.

a. The reaction is first order. Explain how the data in the table are consistent with a first order reaction.

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Updated on: Nov 10, 2022