Verified answer

Good Day..

Problem:

A tank (not rigid) contains 2.3 L of helium gas at 25°c. What will be the volume of the tank after healing it and its content to 40°c temperature at constant pressure?

Note:

Convert degree celsius to kelvin when solving gas laws problem.  

kelvin = degree celsius + 273.15  

Kelvin = 25°c + 273.15 = 298.15 K  

Kelvin = 40°c + 273.15 = 313.15 K

Given:

V1 (initital volume) = 2.3 L

T1 (initial temperature) = 25°c or 298.15 K  

V2 (final volume) = unknown ?

T2 (final temperature) = 40°c  or 313.15 K

Solution:

We can solve this problem using Charles' law which states that, volume is directly proportional to kelvin temperature when the amount and pressure of the gas are constant. Formula is V1/T1 = V2/T2 and to solve for V2, we can use V2 = V1T2 / T1.

V2 = V1T2 / T1

    = 2.3 L  × 313.15 K  / 298.15 K      (cancel unit kelvin)

    = 720.245 L / 298.15

    = 2.416 L

Answer:

The volume is 2.416 L

Hope it helps..=)