Calculate the total kinetic energy of the molecules of nitrogen per cm

1.	Calculate the total kinetic energy of the molecules of nitrogen per cm3 at STP and per m3 at STP.
Answer» 1 mole of a gas occupies 22400 cc at STP KE of 22,400 cc of a gas at STP = KE of 1 mole of a gas at STP = 3/2 x RT = 3/2 x 8.314 × 273 = 3404.58 J KE of 1 cc of a gas = 3404.58/22400 = 0.152 J KE of a m³of a gas = 0.152 × 10⁶ = 152 × 10³ J.

Calculate the total kinetic energy of the molecules of nitrogen per cm3 at STP and per m3 at STP.

Answer»

1 mole of a gas occupies 22400 cc at STP

KE of 22,400 cc of a gas at STP = KE of 1 mole of a gas at STP

= 3/2 x RT = 3/2 x 8.314 × 273 = 3404.58 J

KE of 1 cc of a gas = 3404.58/22400 = 0.152 J

KE of a m³of a gas = 0.152 × 10⁶ = 152 × 10³ J.