organic chemistry

Question

A sample of krypton gas at a pressure of 0.561 atm and a temperature of 117 °C, occupies a volume of 633 mL. If the gas is heated at constant pressure until its volume is 740 mL, the temperature of the gas sample will be
°C.

Answer 1

Constant pressure uses Charles’ Law. 

V1/T1 = V2/T2

V1 = 633 ml = 0.633 L

T1 = 117 + 273 = 390K

V2 = 0.740 L

T2 = ?

Plug values into equation, solve for T2 and subtract 273 to get degrees C