Question

A gas occupies 4.46 L when the temperature is 45.0°C and at 1.04 atm of pressure. What temperature change (in K) will be needed to change the volume to 6.40 L at constant pressure?

Answer 1

To change the volume of a gas at constant pressure, we can use the combined gas law equation.

Step-by-step explanation:

To find the temperature change needed to change the volume of a gas at constant pressure, we can use the combined gas law equation: P1V1/T1 = P2V2/T2

We can rearrange the equation to solve for the temperature change: T2 = T1 x (P2V2) / (P1V1)

Substituting the given values: T2 = 45.0°C x (1.04 atm x 6.40 L) / (1.04 atm x 4.46 L)

Simplifying the equation gives: T2 = 51.53°C

Therefore, a temperature change of approximately 6.53 K would be needed to change the volume to 6.40 L at constant pressure.