FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 14: Principles of Chemical Equilibrium

Show Answer

Share

---

All types

Filters

Study Flashcards

Question 21

Essay

Review LaterAdd Note

Review Later

Understand some of the properties of equilibrium constants.

Correct Answer

verified

Concentrations or partial pres...

View Answer

Show Answer

Question 22

Short Answer

Review LaterAdd Note

Review Later

Write the equilibrium constant expressions for the following reaction: N₂(g) + 3 H₂(g) 2 NH₃(g)

Correct Answer

verified

based on p...

View Answer

Show Answer

Question 23

Multiple Choice

Review LaterAdd Note

A system in chemical equilibrium is characterized by one of the following:

Relate the equilibrium position to thermodynamic quantities.

Solve quantitative equilibrium problems.

Draw a graph of concentration vs. time for a system containing cis- and trans-butene in equilibrium (assume the equilibrium constant is 3.0) to which is added an amount of trans-butene equal to that present in the original mixture and monitored until equilibrium is reached again.

Addition of sodium mono-hydrogencarbonate to water gives what major species?

Determine the equilibrium constant at 0^oC for the following unbalanced reaction:Ba(OH)₂.08H₂O_(s) + NH₄NO_3(s) $\rightarrow$ Ba(NO₃)_2(s) + H₂O_(l) + NH_3(aq)

At 1033ºK, K = 33.3 M for the equilibrium reaction:PCl_{5 (g)} PCl_{3 (g)} + Cl_{2 (g)}If a mixture of 0.100 mole of PCl₅ and 0.300 mole of PCl₃ is placed in a 2.00 L reaction vessel and heated to 1033ºK, what are the numbers of mols of each component at equilibrium?

Calculate the equilibrium constant for the oxychlorination of ethylene to vinyl chloride, CH₂CHCl, under standard conditions at 100^oC given the thermodynamic data below collected at 25^oC: $\Delta$ G° = 53.6(CH₂CHCl), -95.3(HCl), 68.49(CH₂CH₂), -228.7(H₂O) kJ/mol $\Delta$ H° = 37.2(CH₂CHCl), -92.3(HCl), 52.4(CH₂CH₂), -241.8(H₂O) kJ/mol The equation of reaction is: CH₂CH_{2 (g)} + HCl _(g) + $\frac{1}{2}$ O_{2 (g)} $\rarr$ CH₂CHCl _(g) + H₂O _(g)

Write the equilibrium constant expression for the following reaction: 2 N₂ (g) + 2O₂ (g) 4 NO (g)

If the dissolution of CaCl₂ is endothermic, will any of the following increase the amount of CaCl₂ that will dissolve in water?

Write the equilibrium constant expressions and state the reference concentrations for the reactants and products: Cl₂ (g) + 2 H₂O (l ) HOCl (aq) + Cl^- (aq) + H₃O⁺ (aq)

Addition of sodium mono-hydrogencarbonate to water gives what minor species?

Calcite, CaCO_3(s), can be converted to CaO_(s) and CO_2(g). What is the equilibrium pressure of CO₂ at 1150ºK?

The conversion of nitrogen and hydrogen to ammonia is an important industrial reaction:N_{2 (g)} + 3 H_{2 (g)} 2 NH_{3 (g)}If a tank initially containing only nitrogen at 1.0 atm and hydrogen at 3.0 atm converts 13.0 % of the nitrogen to ammonia, what is the value of the equilibrium constant for the reaction at this temperature?

When ammonia dissolves in water the new major species present are

Adding water to the reaction vessel in which the following reaction is occurring will result inBa(OH) ₂.8H₂O_(s) + NH₄NO_3(s) $\rarr$ Ba(NO₃) _2(s) + H₂O_(l) + NH_3(aq)

When is a reaction at equilibrium?

A sample of 3.00 x 10^-1 mole of pure phosgene gas, COCl₂, was placed in a 15.0 L container and heated to 800ºK. At equilibrium, the partial pressure of CO was found to be 0.497 bar. Calculate the equilibrium constant for the following reaction:COCl_{2 (g)} CO _(g) + Cl_{2 (g)}