Question

A gas-forming reaction produces 1.65 m3 of gas against a constant pressure of 196.0 kPa. Calculate...

A gas-forming reaction produces 1.65 m3 of gas against a constant pressure of 196.0 kPa. Calculate the work done by the gas in joules. Hint: be sure to convert the cubic meters to liters and kiloPascals to atm. Look up the conversion factors!

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Answer #1

V = 1.65 m^3 = 1.65 x 1000 L = 1650 L

P = 196 kPa = 1.934 atm

work done = P V = 1.934 x 1650 L-atm

                  = 31911 L-atm

1 Lit-atm = 101.3 J

work done = 31911 x 101.3 J

                   = 323258 J

                    = 3.23 x 10^5 J

work done = 3.23 x 10^5 J

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