One mole of nitrogen at 2 7 ∘ C and 1 atm is in a vessel. Assuming all molecules move at v r m s , find the number of collisions per second against one square metre of wall, in units of 1 0 27 m − 2

Question

One mole of nitrogen at 2 7 ∘ C and 1 atm is in a vessel. Assuming all molecules move at v r m s ​ , find the number of collisions per second against one square metre of wall, in units of 1 0 27 m − 2 s − 1 (two decimals).

TestHub · Accepted Answer

n = k T P ​ = 2.45 × 1 0 25 m − 3 and v r m s ​ = 0.028 3 × 8.314 × 300 ​ ​ = 517 m s − 1 . Rate = 6 1 ​ n v = 2.11 × 1 0 27 .

Physics - Heat & Thermo Question with Solution | TestHub

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