If 100 balloons are inflated from an initial volume of 0.0 L to a final volume of 5.0 L against external pressure of 1.0 atm, how much P-V work, in kilojoules, is done on the surrounding atmosphere by 100 balloons when they are inflated?

Question

If 100 balloons are inflated from an initial volume of 0.0 L to a final volume of 5.0 L against external pressure of 1.0 atm, how much P-V work, in kilojoules, is done on the surrounding atmosphere by 100 balloons when they are inflated? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Work done by 100 balloons: w =- p ex ( V 2- V 1) × 100 =-1.0(5.0-0.0) × 100=-500 L atm =-500 × 101.3=-50650 J =-50.65 kJ

Q. If $100$ balloons are inflated from an initial volume of $0.0 L$ to a final volume of $5.0 L$ against external pressure of $1.0$ atm, how much $P - V$ work, in kilojoules, is done on the surrounding atmosphere by $100$ balloons when they are inflated?

Work done by $100$ balloons:
$w = - p_{e x} (V_{2} - V_{1}) \times 100$
$= - 1.0 (5.0 - 0.0) \times 100 = - 500 L a t m$
$= - 500 \times 101.3 = - 50650 J = - 50.65 k J$

Q. If 100 balloons are inflated from an initial volume of 0.0L to a final volume of 5.0L against external pressure of 1.0 atm, how much P−V work, in kilojoules, is done on the surrounding atmosphere by 100 balloons when they are inflated?

Work done by 100 balloons: w=−pex​(V2​−V1​)×100 =−1.0(5.0−0.0)×100=−500Latm =−500×101.3=−50650J=−50.65kJ

Q. If $100$ balloons are inflated from an initial volume of $0.0 L$ to a final volume of $5.0 L$ against external pressure of $1.0$ atm, how much $P - V$ work, in kilojoules, is done on the surrounding atmosphere by $100$ balloons when they are inflated?

Work done by $100$ balloons:
$w = - p_{e x} (V_{2} - V_{1}) \times 100$
$= - 1.0 (5.0 - 0.0) \times 100 = - 500 L a t m$
$= - 500 \times 101.3 = - 50650 J = - 50.65 k J$