calculate the work performed if a balloon contracts from11.75 L to 806 mL due to an external pressure of 3.9 atm.

Answer 1

w = p*delta
w = 3.9*(11.75-0.806) = ? in L*atm. If you want the work in J, multiply by 101.325. Since the volume is decreasing it means the surrounds are doing work on the system (the balloon) so the sign of work is +.

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