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Vera_Pavlovna [14]

4 years ago

13

A gas has an initial volume of 168 cm3 at a temperature of 255 K and a pressure of 1.6 atm. The pressure of the gas decreases to

1.3 atm, and the temperature of the gas increases to 285 K.

2 answers:

erastovalidia [21]4 years ago

7 0

Would presume you are asked to find the volume, since there is no second volume.

By General Gas Law:

P₁V₁/T₁ = P₂V₂/T₂

1.6 * 168 /255 = 1.3*V₂/285

V₂ = 1.6 * 168 * 285 / (1.3*255)

V₂ = 231.095

Final volume ≈ 231 cm³

allsm [11]4 years ago

5 0

Answer: The final volume is $231cm^3$

Explanation: Using ideal gas equation:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

$P_1$ = initial pressure = 1.6 atm

$V_1$ = initial volume = $168cm^3$

$T_1$ = initial temperature = 255 K

$P_2$ = final pressure= 1.3 atm

$V_2$ = final volume = ?

$T_2$ = final temperature = 285 K

$\frac{1.6\times 168}{255}=\frac{1.3\times V_2}{285}$

$V_2=231cm^3$

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La escala del termómetro ''B'' es grados Fahrenheit.

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Esto quiere decir que los termómetros están expresando la misma temperatura pero en una escala distinta.

Sabemos que dada una temperatura en grados Celsius ''C'' si la queremos convertir a grados Fahrenheit ''F'' debemos utilizar la siguiente ecuación :

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