4 years ago

Which is an example of a catalyst? heat stirring decrease in temperature

Chemistry

1 answer:

Lorico [155]4 years ago

3 0

I think the correct answer is decrease in temperature
I feel like that’s the right one

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it takes 60 days for 1024 grams of element XY to decay to 32 grams. what is the half life of element XY

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Explanation:

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Time taken for 1024 grams to decay into 32 grams = 60 days

To Find:

The half life of element XY = ?

Solution:

The Half life is calculated by

$N = N_0 (\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}$

$t_{\frac{1}{2}}$ = $\frac{t}{log_{\frac{1}{2}}( \frac{N(t)}{N_0})}}$

Substituting the values,

$t_{\frac{1}{2}}$ = $\frac{60}{log_{\frac{1}{2}}( \frac{32}{1024})}}$

$t_{\frac{1}{2}}$ = $\frac{60}{log_{\frac{1}{2}}(0.03125)}}$

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