Charles laww helpp plzz

Question

1) A sample of gas occupies 6.74 L at 325oC, what will its volume be at 25.0oC if the pressure does not change?

2) A balloon is inflated at room temperature of 22.0oC and has a volume of 3.86 L. The balloon is then heated to 51.0oC, what is the final volume?

3) A gas with a volume of 350.0 mL at 130.0oC is heated until the volume is 650.0 mL. What is the new temperature?

4) Exactly 4.00 L of air at -40.0oC is warmed to 100oC. What is the new volume if the pressure remains constant?

Answer 1

1). V1 = 6.74 L

T1 = 325ºC + 273 = 598K

V2 = ?

T2 = 25ºC + 273 = 298K

Constant pressure = Charles Law: V1/T1 = V2/T2 and V2 = V1T2 / T1 plug and chug

2). V1 = 3.86 L

T1 = 22ºC + 273 = 295K

V2 = ?

T2 = 51ºC + 273 = 324K

Constant pressure = Charles Law: V1/T1 = V2/T2 and V2 = V1T2 / T1 plug and chug

3). V1 = 350.0 ml

T1 = 130ºC + 273 = 403K

V2 = 650.0 ml

T2 = ?

Constant pressure = Charles Law: V1/T1 = V2/T2 and T2 = V2T1 / V1 plug and chug

4). V1 = 4.00 L

T1 = -40ºC + 273 = 233K

V2 = ?

T2 = 100ºC = 373K

Constant pressure = Charles Law: V1/T1 = V2/T2 and V2 = V1T2 / T1 plug and chug