CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
8th Edition
ISBN: 9781305079298
Author: Masterton
Publisher: Cengage Learning
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Chapter 12, Problem 81QAP
For the system
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a Suppose the reaction system
CH4 (9) + 202 (g) = CO2(g) + 2H2O(1)
has already reached equilibrium. The position of the equilibrium was shifted by removing any liquid water from the system. Choose the correct effect on equilibrium (it will
shift to the right, will shift to the left, or it will not be affected).
O It will shift to the right.
It will shift to the left.
O It will not be affected.
Consider the following general reaction:2A(g) + 2B(g) ⇌ 3C(g)
The reaction was measured to have an equilibrium reaction constant (K) of 0.0100 at 100 K. If the reaction has a standard enthalpy change (ΔHrxn) of 500.3 J/mol, what should the equilibrium reaction constant be when the temperature is 800 K? (Please provide your answer to 3 significant figures.)
Phosphoryl chloride, POCI3(g), is used in the manufacturing of flame retardants. It is manufactured in an
equilibrium process in which phosphorus trichloride reacts with nitrogen dioxide to form POCI3(g)and NO(g)
according to the following equation:
PCI3 (g) + NO2 (g) = POCI; (g) + NO (g)
At a certain temperature, the equilibrium concentrations of POCI3 and NO was 0.79 mol/L, and the
concentrations of PCI3 and NO2 was 0.90 mol/L. At this temperature the Keg is 4.65.
4.75 moles of NO2 (g) is added to the 1.0 L reaction chamber. What is the concentration of POCI3 (g) when
equilibrium is re-established?
PCI3 (g)
NO2 (g)
POCI3 (g)
NO(g)
+
+
E'
E
Chapter 12 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
Ch. 12 - The following data are for the system A(g)2B(g)...Ch. 12 - The following data are for the system A(g)2B(g)...Ch. 12 - Prob. 3QAPCh. 12 - Complete the table below for the reaction...Ch. 12 - Write the equilibrium expressions (K) for the...Ch. 12 - Write the equilibrium expressions (K) for the...Ch. 12 - Write the equilibrium expressions (K) for the...Ch. 12 - Write the equilibrium expressions (K) for the...Ch. 12 - Given the following descriptions of reversible...Ch. 12 - Given the following descriptions of reversible...
Ch. 12 - Write an equation for an equilibrium system that...Ch. 12 - Write a chemical equation for an equilibrium...Ch. 12 - Consider the following reaction at 250C:...Ch. 12 - Consider the following reaction at 1000 C:...Ch. 12 - At 627C, K=0.76 for the reaction...Ch. 12 - At 800C, K=2.2104 for the following reaction...Ch. 12 - Prob. 17QAPCh. 12 - Given the following data at 25C...Ch. 12 - Given the following data at a certain temperature,...Ch. 12 - Consider the following hypothetical reactions and...Ch. 12 - When one mole of carbon disulfide gas reacts with...Ch. 12 - Calculate K for the formation of methyl alcohol at...Ch. 12 - Ammonium carbamate solid (NH4CO2NH2) decomposes at...Ch. 12 - Consider the decomposition at 25C of one mole of...Ch. 12 - Consider the decomposition of ammonium hydrogen...Ch. 12 - A sealed flask has 0.541 atm of SO3 at 1000 K. The...Ch. 12 - A gaseous reaction mixture contains 0.30 atm SO2,...Ch. 12 - For the system PCl5(g)PCl3(g)+Cl2(g)K is 26 at...Ch. 12 - The reversible reaction between hydrogen chloride...Ch. 12 - The reversible reaction between hydrogen chloride...Ch. 12 - A compound, X, decomposes at 131C according to the...Ch. 12 - Consider the following reaction at 75C:...Ch. 12 - Consider the reaction between nitrogen and steam:...Ch. 12 - At 500C, k for the for the formation of ammonia...Ch. 12 - At a certain temperature, K is 4.9 for the...Ch. 12 - At a certain temperature, K=0.29 for the...Ch. 12 - For the reaction N2(g)+2H2O(g)2NO(g)+2H2(g) K is...Ch. 12 - Nitrogen dioxide can decompose to nitrogen oxide...Ch. 12 - Consider the following reaction:...Ch. 12 - Consider the hypothetical reaction at 325C...Ch. 12 - At a certain temperature, the equilibrium constant...Ch. 12 - At 460C, the reaction SO2(g)+NO2(g)NO(g)+SO3(g)...Ch. 12 - Solid ammonium iodide decomposes to ammonia and...Ch. 12 - Consider the following decomposition at 80C....Ch. 12 - Hydrogen cyanide, a highly toxic gas, can...Ch. 12 - At 800 K, hydrogen iodide can decompose into...Ch. 12 - For the following reactions, predict whether the...Ch. 12 - Follow the directions of Question 47 for the...Ch. 12 - Consider the system SO3(g)SO2(g)+12 O2(g)H=98.9kJ...Ch. 12 - Consider the system...Ch. 12 - Predict the direction in which each of the...Ch. 12 - Predict the direction in which each of the...Ch. 12 - At a certain temperature, nitrogen and oxygen...Ch. 12 - Consider the following hypothetical reaction:...Ch. 12 - Iodine chloride decomposes at high temperatures to...Ch. 12 - Sulfur oxychloride, SO2Cl2, decomposes to sulfur...Ch. 12 - For the following reaction C(s)+2H2(g)CH4(g)...Ch. 12 - For the system 2SO3(g)2SO2(g)+O2(g) K=1.32 at 627....Ch. 12 - For a certain reaction, H is +33 kJ. What is the...Ch. 12 - Prob. 60QAPCh. 12 - Hemoglobin (Hb) binds to both oxygen and carbon...Ch. 12 - Mustard gas, used in chemical warfare in World War...Ch. 12 - Prob. 63QAPCh. 12 - For the decomposition of CaCO3 at 900C, K=1.04....Ch. 12 - Isopropyl alcohol is the main ingredient in...Ch. 12 - Consider the equilibrium H2(g)+S(s)H2S(g)When this...Ch. 12 - Prob. 67QAPCh. 12 - The following data apply to the unbalanced...Ch. 12 - Consider the reaction: A(g)+2B(g)+C(s)2D(g)At 25C,...Ch. 12 - For the reaction C(s)+CO2(g)2CO(g) K=168 at 1273...Ch. 12 - Consider the system A(g)+2B(g)+C(g)2D(g)at 25C. At...Ch. 12 - The graph below is similar to that of Figure 12.2....Ch. 12 - Prob. 73QAPCh. 12 - The figures below represent the following reaction...Ch. 12 - Prob. 75QAPCh. 12 - Prob. 76QAPCh. 12 - Consider the following reaction at a certain...Ch. 12 - Prob. 78QAPCh. 12 - Ammonia can decompose into its constituent...Ch. 12 - Hydrogen iodide gas decomposes to hydrogen gas and...Ch. 12 - For the system SO3(g)SO2(g)+12 O2(g)at 1000 K,...Ch. 12 - A student studies the equilibrium I2(g)2I(g)at a...Ch. 12 - At a certain temperature, the reaction...Ch. 12 - Benzaldehyde, a flavoring agent, is obtained by...Ch. 12 - Prob. 85QAPCh. 12 - Prob. 86QAP
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- Show that the complete chemical equation, the total ionic equation, and the net ionic equation for the reaction represented by the equation KI(aq)+I2(aq)KI3(aq) give the same expression for the reaction quotient. KI3 is composed of the ions K+ and I3-.arrow_forwardWrite an equation for an equilibrium system that would lead to the following expressions (ac) for K. (a) K=(Pco)2 (PH2)5(PC2H6)(PH2O)2 (b) K=(PNH3)4 (PO2)5(PNO)4 (PH2O)6 (c) K=[ ClO3 ]2 [ Mn2+ ]2(Pcl2)[ MNO4 ]2 [ H+ ]4 ; liquid water is a productarrow_forwardIn a solution with carbon tetrachloride as the solvent, the compound VCl4. undergoes dimerization: 2VCl4V2Cl8 When 6.6834 g VCl4. is dissolved in 100.0 g carbon tetrachloride, the freezing point is lowered by 5.97C. Calculate the value of the equilibrium constant for the dimerization of VCl4 at this temperature. (The density of the equilibrium mixture is 1.696 g/cm3, and Kf = 29.8C kg/mol for CCl4.)arrow_forward
- At a certain temperature, K=0.29 for the decomposition of two moles of iodine trichloride, ICl3(s), to chlorine and iodine gases. The partial pressure of chlorine gas at equilibrium is three times that of iodine gas. What are the partial pressures of iodine and chlorine at equilibrium?arrow_forwardDescribe a nonchemical system that is not in equilibrium, and explain why equilibrium has not been achieved.arrow_forwardConsider the following reactions and their respective equilibrium constants: NO(g) + ½Br₂(g) = NOBr(g); K = 5.3 2NO(g) = N₂(g) + O₂(g); K = 2.1 × 10³⁰ Use these reactions and their equilibrium constants to predict the equilibrium constant for the following reaction: N₂(g) + O2(g) + Br₂(g) = 2NOBr(g) Express your answer using two significant figures.arrow_forward
- A 1.00-L flask was filled with 2.00 moles of gaseous SO2 and 2.00 moles of gaseous NO2 and heated. After equilibrium was reached, it was found that 1.30 moles of gaseous NO was present. Assume that the reaction SO2 (g) + NO2 (g) ⇌ SO3 (g) + NO (g) occurs under these conditions. Calculate the value of the equilibrium constant, K, for this reaction.arrow_forwardMethanol can be synthesized by means of the equilibrium reaction CO(g) + 2 H2(g) 2 CH;OH(g) for which the equilibrium constant at 225°C is 6.08 × 10-3. Assume that the ratio of the pressures of CO(g) and H2(g) is 1:2. What values should they have if the partial pressure of methanol is to be 0.500 atm?arrow_forwardGiven the following reactions and the equilibrium constants CO (g) + H,0 (g) Co, (g) + H2 (g) K1 = 1.0 X 105 co (g) + 2 H2 (g) CH;OH (g) K2 = 1.4 X 107 Predict the equilibrium constant for Co, (g) + 3 H, (g) CH;OH (g) + H,0 (g) K = ? 4 O 13900000 O 140 O 0.00714arrow_forward
- Determine the equilibrium constant, Kgoal, for the reaction 4PCI5 (g) =P4(s) + 10C12 (g), Kgoal by making use of the following information: 1. P4(s) + 6C12 (g) = 4PC13 (g), 2. PC15 (g) K1 = 2.00 x 1019 K2 = 1.13 x 10-2 PCI3 (g) + Cl2 (g), Express your answer numerically. • View Available Hint(s) ΑΣφ ? Kgoal %3Darrow_forwardNitrogen oxides are air pollutants produced by the reaction of nitrogen and oxygen at high temperatures. At 2000 °C, the value of the Kc for the reaction, N 2 (g) + 0 2 (g)= 2 NO (g), is 4.1 x 10-4 a) Calculate the equilibrium concentration of NO(g) in air at 1 atm pressure and 2000 °C. The equilibrium concentrations of N2 and 02 at this pressure and temperature are 0.036 M and 0.0089 M, respectively b) What is the value of Kp for the reaction? Use Kp = Kc (RT)An Report your final answer in the answer box below as: [NO] = Kp =arrow_forwardConsider the following reactions and their respective equilibrium constants: NO(g) + Br2 (9) =NOB|(9); K = 5.3 2NO(g) = N2(9)+O2 (g); K = 2.1 x 1030 Use these reactions and their equilibrium constants to predict the equilibrium constant for the following reaction: N2(9) + O2 (g) +Br2 (g) 2NOB1(g) Express your answer using two significant figures. | ? K =arrow_forward
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