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Makayla
Given the following exothermic equilibrium: 2A(g) + B(g) ⇌ C(g) + 3D(g)?
Which actions will shift the equilibrium to the left?
I adding A
II reducing the temperature
III removing B
IV put in a smaller container
V adding heat
VI adding C
VII increasing the volume
Answers:
I and V
II and IV
III and VII
VI only
IV, V and VI
I only
II and III
I, V, VI, and VII
I and II
II only
II and VI
III only
II, III, VI, and VII
III, IV, V, and VI
I and IV
VII only
V only
IV only
I, II, IV, and VI
Chemistry11 months ago
What is represented by (c)? ?
reverse activation energy
change in enthalpy
heat of reactants
heat of products
activation energy
change in entropy
Chemistry11 months agoGiven the following reaction: 2HCl(aq) + Mg(s) ⇌ MgCl2(aq) + H2(g) + heat?
What will make the equilibrium shift to the left?
raising the temperature
All of these will cause the equilibrium to shift to the left.
None of these will cause the equilibrium to shift to the left.
increase the size of the reaction vessel
lowering the temperature
add hydrochloric acid
removing hydrogen gas
adding magnesium metal
1 AnswerChemistry11 months agoGiven the reaction:N2(g) + 3H2(g) ⇌ 2NH3(g)?
The equilibrium concentrations are [N2] = 0.243 M, [H2] = 0.177 M and [NH3] = 0.492 M.
Find the equilibrium constant.
91
422
2.95 x 103
374
5.57 x 10-3
180.
236
47
1.55 x 10-5
1 AnswerChemistry11 months agoA mixture in which the reaction quotient is greater than the equilibrium constant suggests that the equilibrium will ?
shift to the right
fail to occur
shift to the left
1 AnswerChemistry11 months agoWhat is the change in enthalpy? The potential energy is in kilojoules.?
- 100 kJ
+ 200 kJ
+ 300 kJ
- 300 kJ
+ 100 kJ
- 200 kJ
1 AnswerChemistry11 months agoAn equilibrium constant of 900 indicates ?
that there are more products than reactants at equilibrium
that the reaction is not at equilibrium
that there are the same amount of reactants and products at equilibrium
that there are more reactants than products at equilibrium
1 AnswerChemistry11 months agoGiven the equation:A2(g) + B2(g) ⇌ 2AB(g)?
The equilibrium concentrations are: [A] = 4.0 M, [B] = 2.0 M, [AB] = 4.0 M at equilibrium. What is the value of the equilibrium constant?
0.14
0.25
5.0
0.125
3.0
7.0
0.33
8.0
4.0
1.0
0.20
2.0
0.17
6.0
1 AnswerChemistry11 months ago
Activation Energy What is the activation energy? The potential energy is in kilojoules.?
300 kJ
200 kJ
400 kJ
1 AnswerChemistry11 months agoWhat is the equilibrium constant expression for the reaction below? Ca(HCO3)2(s) ⇌ CaO(s) + 2CO2(g) + H2O(g)?
[CO2]2[H2O] / [Ca(HCO3)2]
[Ca(HCO3)2] / [CaO][CO2]2[H2O]
[CO2]2[H2O]
1 AnswerChemistry11 months agoAnyone know how to solve this?
For the reaction: N2O4(g) ⇌ 2NO2(g), Kp = 47. If the equilibrium partial pressure of dinitrogen tetroxide is 0.23 atm, what is the equilibrium partial pressure of nitrogen dioxide?
0.027
3.3
5.3
3.9
4.6
4.1
2.5
1.2
0.56
1.7
Chemistry11 months agoAnyone know how to solve this?
For the reaction: N2O4(g) ⇌ 2NO2(g), Kp = 47. If the equilibrium partial pressure of dinitrogen tetroxide is 0.23 atm, what is the equilibrium partial pressure of nitrogen dioxide?
0.027
3.3
5.3
3.9
4.6
4.1
2.5
1.2
0.56
1.7
2 AnswersChemistry11 months ago3H2(g) + N2(g) ⇌ 2NH3(g), equilibrium concentrations were [H2] = 0.10 M, [N2] = 0.10 M, [NH3] = 5.6 M. What is the equilibrium constant?
560
4.7 x 107
3.1 x 105
1.8 x 10-3
8.7 x 104
The answer is not among these choices.
1.4 x 106
5.6 x 10-4
2 AnswersChemistry11 months agoFor the reaction: CaCO3(s) ⇌ CaO(s) + CO2(g), the equilibrium expression is?
[CO2] / [CaCO3]
[CaO][CO2] / [CaCO3]
[CaCO3]
[CaO] / [CaCO3]
[CaO][CO2][CaCO3]
[CO2]
[CaCO3] / [CaO][CO2]
[CaO]
[CaO][CO2]2 / [CaCO3]3
1 AnswerChemistry11 months agoGiven the equilibrium: N2O4(g) + heat ⇌ 2NO2(g) What action(s) will force the equilibrium to shift to make more heat?
I add nitrogen dioxide gas
II increase the volume
III increase the pressure
IV remove NO2
V add dinitrogen tetroxide
Answer
Chemistry11 months agoGiven the following equilibrium reaction: CaCO3(s) ⇌ CaO(s) + CO2(g) ∆H > 0 Which statement is true?
An increase in pressure shifts the reaction to the right.
A decrease in volume shifts the reaction to the right.
None of these is a true statement.
All of the above statements are true.
An increase in calcium carbonate causes a shift to the right.
An increase in heat shifts the reaction to the right.
2 AnswersChemistry11 months agoGiven the equilibrium: N2O4(g) + heat ⇌ 2NO2(g)?
What action(s) will force the equilibrium to shift to make more heat?
I add nitrogen dioxide gas
II increase the volume
III increase the pressure
IV remove NO2
V add dinitrogen tetroxide
Chemistry11 months agoGiven the reaction: 3H2(g) + N2(g) ⇌ 2NH3(g) ∆H = - 127 kJ?
What will make the equilibrium shift to the right?
I adding hydrogen gas
II adding ammonia
III reducing volume
IV increasing temperature
1 AnswerChemistry11 months agoGiven the following equilibrium reaction: CaCO3(s) ⇌ CaO(s) + CO2(g) ∆H > 0 Which statement(s) is true? Which statement is true?
An increase in pressure shifts the reaction to the right.
A decrease in volume shifts the reaction to the right.
None of these is a true statement.
All of the above statements are true.
An increase in calcium carbonate causes a shift to the right.
An increase in heat shifts the reaction to the right.
1 AnswerChemistry11 months agoGiven: I. 4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g) ΔH = -114 kJ/mol II. 2KClO3(s) ⇌ 2KCl(s) + 3O2(g) ΔH = +68 kJ/mol?
1. put I in a larger container
2. add calcium carbonate to III
Chemistry11 months ago