Question

please show me a sep wise solution for these problem as i am trying to learn from your solution. if you cant or you answer partially dont answer please.

Question 1 (4 pts): Consider N2 gas contained in a sealed container, whose volume you can change. Initially the gas' temperature is 25 C, the pressure is 1.0 atm, and the volume is 1.0 L. If you decrease the volume to 0.5 L and increase the temperature to 50 C, what is the new pressure? a) 1.8 atm b) 2.2 atmm c) 3.7 atm d) 4.0 atm e) 5.2 atm Question 2 (4 pts): If an H atom at room temperature (25 C) moves with a speed of 2.5 km/s, which of the following has the fastest speed? Note that O has an atomic mass of 16, and N has an atomic mass of 14. a) An O2 molecule at room temperature b) A N2 molecule at room temperature c) A water molecule at 100 C d) An H atom at 100 C e) An H atom at 0 C Question 3 (4 pts): Consider air flowing through a horizontal air duct whose cross sectional area varies as shown below. Assume there is no loss or gain of air along this duct. Where does the gas have the highest velocity? a) Point A b) Point B c) Point C

Answer 1

(D) PM a content constant (hatm) (LL) (P) (0.5L) - P = 2.2 atom (273+25K (273+50k [ Ans(b)] for option (d), and T is M is minimum maximum. 3 Q = Av = constant cross section area (A). highest velocity for smallest I Ars (6) Point &