Brownian motion is not observed in a mixture that includes two phases. Which best identifies the mixture? a colloid a suspension
2 answers:
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Answer:
Approximately .
Explanation:
Calculate the ratio between the mass of this sample after and the initial mass:
.
Let denote the number of half-lives in that
(where
might not necessarily be an integer.) The mass of the sample is supposed to become
the previous quantity after each half-life. Therefore, if the initial mass of the sample is
(for example,) the mass of the sample after
half-lives would be
. Regardless of the initial mass, the ratio between the mass of the sample after
half-lives and the initial mass should be
.
For this question:
.
Take the natural logarithm of both sides of this equation to solve for :
.
.
.
In other words, there are half-lives of this sample in
. If the length of each half-life is constant, that length should be
.
Answer:
691.29 K or 418.14 °C
Explanation:
Hello, at first the moles of oxygen gas are required:
Now, based on the ideal gas equation, we solve for the temperature:
Best regards.