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An expanding gas does 143 J of work on its surroundings at a constant pressure of...

An expanding gas does 143 J of work on its surroundings at a constant pressure of 1.04 atm. If the gas initially occupied 68.0 mL, what is the final volume of the gas?

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Answer #1

W   = 143J

1L-atm   = 101.3J

101.3J   = 1L-atm

143J    = 1L-atm*143J/101.3J     = 1.412 L-atm

V1 = 68ml = 0.068L

W   =I -PV I

W    = P(V2-V1)

1.412   = 1.04*(V2-0.068)

V2-0.068   = 1.412/1.04

V2 -0.068 = 1.3576

V2           = 1.3576+0.068   = 1.4256L    = 1425.6ml>>>>answer

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