Ch.14 - Chemical EquilibriumWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Nitrogen and oxygen react at high temperatures.(a) Write the expression for the equilibrium constant (Kc) for the reversible reactionN2(g) + O2(g) ⇌ 2NO(g) ΔH = 181 kJ(b) What will happen to the concentrations of N2, O2, and NO at equilibrium if more O2 is added?(c) What will happen to the concentrations of N2, O2, and NO at equilibrium if N2 is removed?(d) What will happen to the concentrations of N2, O2, and NO at equilibrium if NO is added?(e) What will happen to the concentrations of N2, O2, and NO at equilibrium if the pressure on the system is increased by reducing the volume of the reaction vessel?(f) What will happen to the concentrations of N2, O2, and NO at equilibrium if the temperature of the system is increased?(g) What will happen to the concentrations of N 2, O2, and NO at equilibrium if a catalyst is added?

Problem

Nitrogen and oxygen react at high temperatures.

(a) Write the expression for the equilibrium constant (Kc) for the reversible reaction
N2(g) + O2(g) ⇌ 2NO(g) ΔH = 181 kJ
(b) What will happen to the concentrations of N2, O2, and NO at equilibrium if more O2 is added?
(c) What will happen to the concentrations of N2, O2, and NO at equilibrium if N2 is removed?
(d) What will happen to the concentrations of N2, O2, and NO at equilibrium if NO is added?
(e) What will happen to the concentrations of N2, O2, and NO at equilibrium if the pressure on the system is increased by reducing the volume of the reaction vessel?
(f) What will happen to the concentrations of N2, O2, and NO at equilibrium if the temperature of the system is increased?

(g) What will happen to the concentrations of N 2, O2, and NO at equilibrium if a catalyst is added?