Temperature and volume

Question

A sample of gas in a balloon has an initial temperature of 35  and a volume of 1.01×10³  . If the temperature changes to 65  , and there is no change of pressure or amount of gas, what is the new volume, of the gas?

Answer 1

T1 = initial temperature = 35ºC (I'm assuming it is Celsius) + 273 = 308K

V1 = initial volume = 1.0x10³ (? is this mls or liters)

T2 = final temperature = 65ºC (again assuming Celsius) + 273 = 338K

V2 = ?

Since the pressure and moles are constant, we can use Charles' Law, V1/T1 = V2/T2...

Solving for V2, we have..

V2 = V1T2 / T1

V2 = (1.0x10³)(338K) / 308K

V2 = 1.10x10³ units (either mls or liters, or whatever the units are)