Chemistry, 03.03.2020 02:47 alexandrarosete7

The volume of 350 mL of gas at 25°C is decreased to 135mL at constant pressure. what is the final temperature of the gas?

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Answer from: ineedtopeebeforethec

The decrease in the volume of gas at constant pressure results in the final temperature of the gas is 115.05 K.

The Charles law states that with the gas constant pressure there has been a proportional relationship between the volume and temperature.

At constant pressure, the relationship between the temperature and volume can be given by:

$\rm \dfrac{Initial\;volume}{\Initial\;Temperature}\;=\;\dfrac{Final\;Volume}{Final\;Temperature}$

For the given gas, the final temperature can be calculated as:

$\rm \dfrac{350\;ml}{298.15\;K}\;=\;\dfrac{135\;ml}{Final\;temperature}$

1.173 = $\rm \dfrac{135\;ml}{Final\;temperature}$

Final temperature = $\rm \dfrac{135\;ml}{1.173\;K}$

Final temperature = 115.05 K.

The reduction in the volume of gas at constant pressure results in the final temperature of the gas is 115.05 K.

For more information about the volume of gas at constant pressure, refer to the link:

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Answer from: cdradlet2001

114. 9 K or approximately 115 K is the final temperature of the gas.

Explanation:

Charles' Law is also termed as the Temperature-Volume Law which states that at the constant pressure, the volume of a gas is directly proportional to the temperature in Kelvin. As the volume raises, the temperature also goes up, and vice versa.

$\begin{aligned}&\begin{array}{|l}\frac{V 1}{T 1}=\frac{V 2}{T 2} \\T 2=\frac{T 1 \times V 2}{V 1}\end{array}\\&T 2=\frac{298 \times 135}{350}\\&=114.9 K\end{aligned}$

Answer from: Quest

wanahton purified a portion of water with 900 grams of contaminants. each hour, a third of the contaminants was filtered out.

let g(n) be the amount of contaminants (in grams) that remained by the beginning of the nth hour. g is a sequence, what kind of sequence is it, arithmetic or geometric? then, write an explicit formula for the sequence, g(n)=

wanahton purified a portion of water with 900 grams of contaminants. each hour, a third of the contaminants was filtered out.

explanation:

Answer from: Quest

im not exactly sure but i think its b!

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