Question

The pressure of a sample of dry air is held constant 2.25 atm while the temperature is
decreased from 100°C to 7.0°C. The original volume of the sample is 43 L. Which of
the following is closest to the final volume of the sample?
A) 3.0L
B) 32L
C) 57 L
D) 610 L

Answer 1

Charles’ law: V1/T1 = V2/T2. The volume and temperature of a fixed amount of gas at a constant pressure are directly proportional. To use the equation, the temperature must be in Kelvin.

V2 = V1T2/T1 = (43 L)(280.15 K)/(373.15 K)
V2 = 32 L

The correct answer choice would thus be B.

Answer 2

The pressure of a sample of dry air is held constant 2.25 atm while the temperature is decreased from 100°C to 7.0°C. The original volume of the sample is 43 L. 32 L is the closest to the final volume of the sample?

What is Charles's law?

A law states that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.

Charles’ law:

$\frac{V_1}{T_1}$ = $\frac{V_2}{T_2}$

The volume and temperature of a fixed amount of gas at a constant pressure are directly proportional.

To use the equation, the temperature must be in Kelvin.

$V_2$ = $\frac{V_1}{T_1} XT_2$

$V_2$ = 32 L

$V_2$= 32 L

Hence, the correct answer is B.

Learn more about the Charles’ law here:

https://brainly.com/question/14842720

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