A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0 C. What will the volume of the balloon be if the temperature is increased to 80.0 C and the pressure remains constant? (Hint: Use the Charles law equation)

The final volume of the balloon is 24.480 liters.

Explanation:

Let consider that no leakages occur in the balloon during the isobaric process and that helium behaves ideally. From Equation of State for Ideal Gases, we construct the following relationship:

(1)

Where:

, - Initial and final volume, measured in liters.

, - Initial and final temperature, measured in Kelvin.

If we know that , and , the final volume of the balloon is:

The final volume of the balloon is 24.480 liters.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

yes the answer is total mass in unchanged   : )