Question 1
1. The equilibrium constant for the gas phase reaction
N2 (g) + 3H2 (g) 2NH3 (g) is Keq = 4.34 × 10-3 at 300 °C. At equilibrium, ________.
products predominate
reactants predominate
roughly equal amounts of products and reactants are present
only products are present
only reactants are present
Question 2
1. At 1000.0 K, the equilibrium constant for the reaction
2NO (g) + Br2 (g) 2NOBr (g) is Kp = 0.016. Calculate Kp for the reverse reaction,
2NOBr (g) 0.016
1.6 × 10-4
63
0.99
1.1
Question 3 2NO (g) + Br2 (g). 1. The effect of a catalyst on a chemical reaction is to react with product, effectively removing it
and shifting the equilibrium to the right.
True False Question 4
1. Of the following equilibria, only ________ will shift to the right in response to a decrease in
volume.
H2 (g) + Cl2 (g)
2 SO3 (g) 2 SO2 (g) + O2 (g) N2 (g) + 3H2 (g)
2 Fe2O3 (s)
2HI (g) 2 HCl (g0029 2NH3 (g)
4 Fe (s) + 3O2 (g) H2 (g) + I2 (g) 1 points
Question 5
1. Consider the following chemical reaction:
CO (g) + 2H2(g) CH3OH(g) At equilibrium in a particular experiment, the concentrations of CO and H 2 were 0.15M and
0.36M respectively. What is the equilibrium concentration of CH 3OH? The value of Keq for this
reaction is 14.5 at the temperature of the experiment.
14.5
7.61 × 10-3
2.82 × 10-1 3.72 × 10-3
1.34 × 10-3
1 points
Question 6
1. Which of the following expressions is the correct equilibrium-constant expression for the
reaction below?
CO2 (s) + H2O (l) H+ (aq) + HCO3- (aq) [H+][HCO3-]/ [CO2]
[CO2]/ [H+][HCO3-]
[H+][HCO3-]/ [CO2][H2O]
[CO2][H2O]/ [H+][HCO3-]
[H+][HCO3-]
Question 7
1. The equilibrium-constant expression for the reaction
Ti (s) + 2Cl2 (g) is given by TiCl4 (l) [Cl2 (g)]-2 Question 8
1. Nitrosyl bromide decomposes according to the following equation.
2NOBr (g) 2NO (g) + Br2 (g) A sample of NOBr (0.64 mol) was placed in a 1.00-L flask containing no NO or Br 2. At equilibrium
the flask contained 0.16M of NOBr. How many moles of NO and Br 2, respectively, are in the flask
at equilibrium? 0.48, 0.24
0.48, 0.48
0.16, 0.08
0.16, 0.16
0.24, 0.42
1 points
Question 9
1. Given the following reaction at equilibrium, if K c = 5.84 x 105 at 230.0 °C, Kp = ________.
2NO (g) + O2 (g) 3.67 × 10-2 2NO2 (g) 1.41 × 104
6.44 × 105
2.40 × 106
2.41 × 107
1 points
Question 10
1. The expression of Keq for the following reaction will not include ________.
A(g) + B(g) C(l) + D(g) [C]
[A]
[B]
[D]
None of these
Question 11
1. In the coal-gasification process, carbon monoxide is converted to carbon dioxide via the
following reaction:
CO (g) + H2O (g) CO2 (g) + H2 (g) In an experiment, 0.35 mol of CO and 0.40 mol of H 2O were placed in a 1.00-L reaction vessel. At
equilibrium, there were 0.22 mol of CO remaining. K eq at the temperature of the experiment is
________.
5.5 0.75
3.5
0.28
1.0
1 points
Question 12
1. The value of Keq for the equilibrium
H2 (g) + I2 (g) 2HI (g) is 794 at 25 °C. What is the value of Keq for the equilibrium below?
1/2 H2 (g) + 1/2 I2 (g) HI (g) 397
0.035
28
1588
0.0013
1 points
Question 13
1. The value of Keq for the equilibrium
N2 (g) + O2 (g) 2 NO (g) is 4.2 × 10-31 at 27 °C. What is the value of Keq for the equilibrium below?
4 NO (g) 2 N2 (g) + 2 O2 (g) 5.7 × 1060
8.4 × 10-31
4.2 × 1031
8.4 × 1031
None of these
1 points
Question 14
1. The Keq for the equilibrium below is 0.112 at 700.0 °C.
SO2 (g) + O2 (g) SO3 (g) What is the value of Keq at this temperature for the following reaction?
2SO2 (g) + O2 (g) 1.25 × 10-2
2.24 × 10-1
7.97 × 101
4.46
0.112 2SO3 (g) Question 15
1. Which one of the following is true concerning the Haber process?
It is a process used for shifting equilibrium positions to the right for more economical
chemical synthesis of a variety of substances.
It is a process used for the synthesis of ammonia.
It is another way of stating Le Châtelier's principle.
It is an industrial synthesis of sodium chloride that was discovered by Karl Haber.
It is a process for the synthesis of elemental chlorine.
Question 16
1. The equilibrium constant for the gas phase reaction
2NH3 (g) N2 (g) + 3H2 (g) is Keq = 230 at 300 °C. At equilibrium, ________.
products predominate
reactants predominate
roughly equal amounts of products and reactants are present
only products are present
only reactants are present Question 17
1. Consider the following reaction at equilibrium:
2SO2 (g) + O2 (g) 2SO3 (g) H° = -99 kJ Le Châtelier's principle predicts that a(n) increase in temperature will result in ________.
an increase in the partial pressure of O2
a decrease in the partial pressure of O2
a decrease in the partial pressure of SO2
a(n) increase in Keq
no changes in equilibrium partial pressures
1 points
Question 18
1. Which of the following expressions is the correct equilibrium-constant expression for the
equilibrium between dinitrogen tetroxide and nitrogen dioxide?
5N2O4(g) [NO2]10/[N2O4]5
[N2O4]10/[NO2]5
[NO2]5/[N2O4]10
[NO2]5/[N2O4]5 10NO2 (g) [N2O4]5/[NO2]5 Question 19
1. Given the following reaction at equilibrium at 450.0 °C:
CaCO3 (s) CaO (s) + CO2 (g) If pCO2 = 0.0155 atm, Kc = ________.
155
0.0821
0.920
2.61 × 10-4
9.20
Question 20
1. Consider the following equilibrium.
2 SO2 (g) + O2 (g) 2 SO3 (g) The equilibrium cannot be established when ________ is/are placed in a 1.0-L container.
0.25 mol SO2 (g) and 0.25 mol O2 (g) 0.75 mol SO2 (g)
0.25 mol of SO2 (g) and 0.25 mol of SO3 (g)
0.50 mol O2 (g) and 0.50 mol SO3 (g)
1.0 mol SO3 (g)

 

SuperTutor

(15)

Status NEW Posted 27 Apr 2017 02:04 AM My Price 13.00

-----------

Attachments

file 1493259615-Solutions file.docx preview (56 words )

S-----------olu-----------tio-----------ns -----------fil-----------e -----------Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- yo-----------ur -----------int-----------ere-----------st -----------and----------- bu-----------yin-----------g m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l b-----------e q-----------uic-----------kly----------- on-----------lin-----------e a-----------nd -----------giv-----------e y-----------ou -----------exa-----------ct -----------fil-----------e a-----------nd -----------the----------- sa-----------me -----------fil-----------e i-----------s a-----------lso----------- se-----------nt -----------to -----------you-----------r e-----------mai-----------l t-----------hat----------- is----------- re-----------gis-----------ter-----------ed -----------onÂ----------- th-----------is -----------web-----------sit-----------e. ----------- H-----------YPE-----------RLI-----------NK -----------&qu-----------ot;-----------htt-----------p:/-----------/wo-----------rkb-----------ank-----------247-----------.co-----------m/&-----------quo-----------t; -----------\t -----------&qu-----------ot;-----------_bl-----------ank-----------&qu-----------ot;----------- -----------Tha-----------nk -----------you----------- -----------

Not Rated(0)

• Buy Answer