Physics question?

Question

Assume that the pressure
does not change.
A balloon filled with oxygen gas occupies a
volume of 4.8 L at 21 ◦C. What volume will
the gas occupy at 128 ◦C
Answer in units of L

Answer 1

Initial volume, V₁ = 4.8 L = 4.8×10^-3 m ³

Initial temperature, T₁ = 21^oC = 294 K

Final temperature, T₂ =128^oC = 401 K

Calculate the final by using the Charle's law

V₁/T₁ =V₂/T₂

(4.8×10^-3 )/294 = V₂/401

V₂ = 6.55 ×10^-3 m ³

     = 6.55 L

Therefore , the volume at 128^oC is 6.55 L