Question

Question 4 How will the pressure change if a sample of an ideal gas in a rigid 2.0L container initially at 250°C is cooled to -142 °C! The final pressure will be 1/2 of the original pressure. The final pressure will be the same as the original pressure. The gas pressure is reduced to zero The final pressure will be 2 times the original pressure. The final pressure will be 1/4 of the original pressure. The final pressure will be 4 times the original pressure. • Previous No new data to save. Last checked at 4:24pm Subm MacBook Air esc an F

Answer 1

is constant? 4) v = 2 = 2.00 Cet initial pressure final pressure } lie. volume = P, = P2 we have, T = 250'l = 1250 +273 ) K - 523K = -142°C a (273-142) K = 11K Now, Now, P = P2 v e TBI . The final pressure will be t of the original pressure. 5) volume = 295mL = 0.2951 Concentration = 0.751M ..moles of NH y N O = volume x concentration = 0.295 80.751 na mol .: molecules of NH y NO₂ = 0.295X0.751 6.022x10² Each molecule of NH 4 NO has a nitrogen atoms. & Number of nitrogen atoms - 2x0.29580751X61022x1025 = 2.67% 1023 nitrogen atoms

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