Consider the following reaction (assume an ideal gas mixture) A 1.0-liter vessel
ID: 929733 • Letter: C
Question
Consider the following reaction (assume an ideal gas mixture) A 1.0-liter vessel was initially filled with pure NOBr. at a pressure of 4.0 atm. at 300 K After equilibrium was established, the partial pressure of NOBr was 3 0 atm What is K_p for the reaction'' Consider the following equilibrium: What is the value of K for the equilibrium 2 CO_2(g) = 2 CO(g) + O_2(g) 18 The kinetics of the decomposition of dinitrogen pentoxide, N_2O_5, is studied at 50 degree C and at 75 degreeC. Which of the following statements concerning the studies is correc The rate at 75degreeC will be greater than the rate at 50 degreeC because the activation energy will The rate at 75degreeC will be greater than the rate at 50degreeC because the act.Nation energy will 75 degreeC will be less than 50degreeC became the molecules higher speeds do no, 50 degreeC because the nnmber of molecules with Which of the following is .he equilibrium consun. expression for the dossociation of the weak acis HOCI?Explanation / Answer
16)
V = 1 L
P = 4 NOBr
Kp = ?
2NOBr <-> 2NO + Br2
P NOBr = 4
P NO = 0
P Br = 0
in equil
P NOBr = 4 -2x
P NO = 0 +x
P Br = 0 +x
P NOBr = 4 -2x = 3
x = (3-4)/-2 = 0.5
then
P NOBr = 4 -2x = 3
P NO = 0 +2x = 1
P Br = 0 +x = 0.5
Kp = (1^2)(0.5)/(3)^2 = 0.05555
17)
The K is inverted since now products are reactants and vice versa
so K1 = 1/K2
Knew = (1/(4*10^-10) =2.50*10^9
18)
D) is true; the higher T, higher collision and interaction
19)
HOCl <-- > h+ and OCl-
Ka = [H+][OCl-]/([OCl]
then
answer is a
20=
[H+] = 10^-pH = 10^-10.08 = 8.3176*10^-11