(a) A piston at 8.7 atm contains a gas that occupies a volume of 3.5 L. What pre

Question

(a) A piston at 8.7 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.42 L? atm (b) A piston at 31.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 5.7 L at constant pressure? °C (c) A piston at 7245 torr contains a gas that occupies a volume of 4.7 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.74 L? atm

Explanation / Answer

a) Using Boyle's Law; P1V1= P2V2

P1= 8.7 atm, P2= ?

V1= 3.5L, V2=0.42 L

P2= P1V1/V2= 8.7*3.5/0.42= 72.45L

b) Using Charles Law; V1/T1= V2/T2

V1= 2.5 L, T1=31 C

V2= 5.7 L, T2=?

2.5/31= 5.7/T2

T2= 70.68 C

c) Using Boyle Law; P1V1=P2V2

P1= 7245 torr, V1=4.7 L

P2=?, v2=0.74 L

7245*4.7= 0.74* P2

P2= 46015.54 torr

P2=46015.54/760 = 60.54 atm

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