MoreGasProblems

# MoreGasProblems - final total V of 6.20 L the initial V of...

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More Gas Problems : 1. A gaseous reaction is carried out in reaction vessel at constant pressure. Before the reaction, the temperature was 150K; when it is complete, the temperature was 300K. The volume of the gases before and after the reaction is the same. Which of the following balanced equations describes the reaction: a) A 2 + B 2 2AB b) 2AB + B 2 2AB 2 c) A + B 2 AB 2 d) 2AB 2 A 2 + 2B 2

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2. If, in a piston/cylinder at constant T, 4.00 L of He(g) at 6.60 atm is mixed with a sample of Ne(g) at 4.40 atm to give a final total P of 5.50 atm and a

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Unformatted text preview: final total V of 6.20 L, the initial V of the Ne(g) sample was closest to: a) 4.43 L b) 1.75 L c) 6.20 L d) 2.96 L e) 3.58 L 3. If it takes 1.25 min for 0.010 moles of He to effuse, how long will it take for the same amount of ethane (C 2 H 6 ) to effuse? 4. At a given T, a compound composed of C, H, and Cl effuses at a rate which is 0.411 times the rate at which neon effuses. What is this compound? a) CH 3 Cl b) CH 2 Cl 2 c) CHCl 3 d) C 2 H 2 Cl 2 e) C 2 H 3 Cl Answers : 1 c) 2 b) 3 3.42 min 4 c)...
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