Chemistry can someone show me how they did it and got answer

Question

A sample of argon is in a balloon with an initial volume of 5.00 L is heated from 25 ̊C to 35 ̊C. What is the new volume of the balloon, if the pressure constant?

Answer 1

Since pressure is constant, we are looking at Charles' Law: the Volume is directly proportional to the temperature in Kelvins:

V₁/T₁ = V₂/T₂

1st change the temps from ^oC to K by adding 273. Hence, T₁ = 25 + 273 = 298 K & T₂ = 35 + 273 = 308 K

Next, rearrange the equation to solve for (isolate) V₂

V₂ = (V₁T₂)/T₁ = [(5.00 L)(308 K)]/(298 K) = 5.17 = 5.2 L