Question

A gas expands from a volume 2.0 L at 36oC to a volume of 2.5 L, what is the final temperature, if the pressure is constant?

Answer 1

386.45 K

Step-by-step explanation:

We can solve this problem by using Charles' law, which states that at constant pressure:

• V₁T₂=V₂T₁

Where subscript 1 stands for initial conditions of volume and temperature, while 2 stands for the final ones. Meaning that in this case:

• V₁ = 2.0 L

• T₂ = ?

• V₂ = 2.5 L

• T₁ = 36 °C ⇒ 36 +273.16 = 309.16 K

We input the data:

• 2.0 L * T₂ = 2.5 L * 309.16 K

And solve for T₂:

• T₂ = 386.45 K