University:
Boston University
Course:
CAS CH 102 | General Chemistry 2
Academic year:

2023
Views:

48

Pages:

2
Author:

Bambukal71m

Useful Information: 𝑁A = 6.022140857 × 1023/mol, 𝑅 = 8.314 J/(mol K) = 0.08206 L atm/(mol K), 1 J = 1 kg m2/s2, 1 L = (0.1 m)3, 1 atm = 1.01325 bar, 1 bar = 105 Pa, 1 Pa = 1 kg/(m s2), 𝑢𝑟𝑚𝑠 = √3𝑅𝑇/𝑀 = 𝑢mp √3/2, [𝑃 + 𝑎(𝑛/𝑉)2 ](𝑉 − 𝑛𝑏) = 𝑛𝑅𝑇 1. (4 points) The chemical reaction 2 A(g) + 3 B(g) ⇌ C(g) is carried out in a rigid 2.00 L container at 28.7 oC. At the start of the reaction, 3.00 atm of A and 6.00 atm of B are added to the container, for a total pressure of 9.00 atm. What will be the total pressure in the container at the end of the reaction? A is a L.R. 2points 2 A(g) Initial: Used: End: + 3.00atm -3.00 0atm 3 B(g) 6.00 atm -4.50 1.50atm ⇌ C(g) P= n* RT ; P~n V +1.50 1.50atm Ptottal=3.00atm 2points 2. (3 points) At a certain temperature, T1, and pressure, P1, a 1.0 mole sample of gaseous acetaldehyde has a root mean square velocity of urms,1 inside a closed container. The pressure inside of the container is increased by a factor of four, P2 = 4 P1, at constant temperature. Circle the correct relationship between the initial rms velocity, urms,1, and the final rms velocity, urms,2. urms,1 = urms,2 3. (3 points) At a certain temperature, T1, and pressure, P1, a 2.0 mole sample of gaseous acetaldehyde has a root mean square velocity of urms,1 inside a closed container. The temperature inside of the container is increased by a factor of four, T2 = 4 T1. Circle the correct relationship between the initial rms velocity, , urms,1, and the final rms velocity, urms,2. urms,1 = 1/2 urms,2 Useful Information: 𝑁A = 6.022140857 × 1023/mol, 𝑅 = 8.314 J/(mol K) = 0.08206 L atm/(mol K), 1 J = 1 kg m2/s2, 1 L = (0.1 m)3, 1 atm = 1.01325 bar, 1 bar = 105 Pa, 1 Pa = 1 kg/(m s2), 𝑢𝑟𝑚𝑠 = √3𝑅𝑇/𝑀 = 𝑢mp √3/2, [𝑃 + 𝑎(𝑛/𝑉)2 ](𝑉 − 𝑛𝑏) = 𝑛𝑅𝑇 1. (4 points) The chemical reaction 2 A(g) + 3 B(g) ⇌ C(g) is carried out in a rigid 2.00 L container at 28.7 oC. At the start of the reaction, 5.00 atm of A and 6.00 atm of B are added to the container, for a total pressure of 11.00 atm. What will be the total pressure in the container at the end of the reaction? B is a L.R. 2points Initial: Used: End: 2 A(g) + 3 B(g) 5.00atm -4.00 1atm 6.00 atm -6 0. atm Ptottal=3.00atm 2points ⇌ C(g) P= n* RT ; P~n V +2.00 2.00atm 2. (3 points) At a certain temperature, T1, and pressure, P1, a 1.0 mole of gaseous acetaldehyde has a root mean square velocity of urms,1 inside a closed container. The pressure inside of the container is decreased by a factor of four, P1 = 4 P2, at constant temperature. Circle the correct relationship between the initial root mean square velocity, urms,1, and the final root mean square velocity, urms,2. urms,1 = urms,2 3. (3 points) At a certain temperature, T1, and pressure, P1, a 2.0 mole of gaseous acetaldehyde has a root mean square velocity of urms,1 inside a closed container. The temperature inside of the container is decreased by a factor of four, T1 = 4 T2. Circle the correct relationship between the initial root mean square velocity, urms,1, and the final root mean square velocity, urms,2. urms,1 = 2 urms,2