19 When one kgmole of diatomic hydrogen (H,) is heated at a pressure of 101 KPa, some of it dissociates into monatomic hydrogen (H) in the reaction: H22 H. At a certain tem- per atu re the re will be x moles of H for every 2x moles of Hz. Calculate: (a) Number of moles of monatomic Hat this temperature (x = ?). (b) Chemical equilibrium constant at this temperature. (c) Temperature. [K]

19 When one kgmole of diatomic hydrogen (H,) is heated at a pressure of 101 KPa, some of it dissociates into monatomic hydrogen (H) in the reaction: H22 H. At a certain tem- per atu re the re will be x moles of H for every 2x moles of Hz. Calculate: (a) Number of moles of monatomic Hat this temperature (x = ?). (b) Chemical equilibrium constant at this temperature. (c) Temperature. [K]

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Consider the following reaction where Ke = 1.29x102 at 600 K: CoCl₂(g) CO(g) + Cl₂(g) A reaction mixture was found to contain 0.110 moles of COCl₂(g), 2.47x102 moles of CO(g), and 4.46x102 moles of Cl₂(9), in a 1.00 Liter container. Indicate True (T) or False (F) for each of the following: 1. In order to reach equilibrium COCI₂(g) must be consumed. 2. In order to reach equilibrium K, must increase. 3. In order to reach equilibrium CO must be consumed. 84. Qe is greater than Ke 5. The reaction is at equilibrium. No further reaction will occur. Submit Answer Retry Entire Group 9 more group attempts remaining
Solve for AH°, AS°, AG° Base on the following data on the table below then identify wether the reaction is at spontaneous or standard condition.
Consider the following reaction that has a Kc = 2.4 x 10^-3 at 1000K: N2(g) + 3 H2(g) = 2NH3(g) in a reaction vessel that is 5.0 x 10^3 L, 250 moles of N2, 250 mol of H2, and 50.0 mol of NH3 are mixed. write the reaction quotient. Calculate Qc.
Initially 10.0 mol of ammonia gas is injected into a 4.0 L container. At equilibrium 1.2 mol of nitrogen gas is found in the container. The number of moles of ammonia gas at equilibrium would be? 2NH3(g) + 94 kJ <=====> N2(g) + 3H2(g)
As of 2018, -95% of hydrogen is produced from fossil fuels. One of the most important reactions of this type is the steam reforming of methane (CHA). Write a balanced chemical equation based on the following description: gaseous methane reacts with steam to form carbon monoxide and hydrogen gases. 3c, 2- Reset 1 3 4 7 9 -> (s) (1) (g) (aq) H. Но СНО Не Co x H20 00 LO
N2(g) + 3H2(g) + 2NH3(g) At 500°C, the value of Kc for this reaction is 0.40. The following concen- trations of gases are present in a container at 500°C: [N2(g)] = 0.10 mol/L, [H2(g)] = 0.30 mol/L, and [NH3(g)] = 0.20 mol/L. Is this mixture of gases at equilibrium? If not, in which direction will the reaction go to reach equilibrium? Is this mixture of gases at equilibrium: If "no", in which direction will the reaction go: (yes/no) (left/right/no-shift)
Consider the following reaction where Ke = 10.5 at 350 K. 2CH₂Cl₂ (9) CH4 (9) + CCl4 (9) A reaction mixture was found to contain 0.0115 moles of CH₂Cl₂ (g), 0.0238 moles of CH₁ (g), and 0.0446 moles of CCl4 (g). in a 1.00 liter container. Calculate Qe ac Important values if needed for this question. Is the reaction at equilibrium? If not, what direction must it run in order to reach equilibrium? O The reaction must run in the forward direction to reach equilibrium. The reaction must run in the reverse direction to reach equilibrium. OThe reaction is at equilibrium. Submit Answer Retry Entire Group 4 more group attempts remaining
[Review Topics] [References] Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH=-108 kJ, and K. 77.5, at 600 K. CO(g) + C,(g) COCI,(g) When 0.22 moles of Cl,(g) are added to the equilibrium system at constant temperature: The value of K The value of Qe K. The reaction must O run in the forward direction to restablish cquilibrium. O run in the reverse direction to restablish cquilibrium. O remain the same. It is already at cquilibrium. The concentration of CO will Submit Answer Retry Entire Group 1 more group attempt remaining
For a particular maction at 250C, AGAand ArES1 Whatis AS for th reaction, n K Enter the numerical value to 3 signiicant figures without unts
The following reaction is carried out at 25.0 °C and 1.00 atm: 2NO(g) + O2(g) →→ 2NO2(g) AH0 kJmol-1 Sº JK-¹mol-1 NO (g) -110.525 197.674 NO₂ (g) -393.509 213.74 O₂ (g) 0.00 205.0 Using the data in the table: • Calculate the enthalpy of reaction, A₁H, for the reaction: mol-1 • Calculate the entropy change, ASº, for the reaction: • Calculate AGO for the reaction: kJ mol-1 Is this reaction spontaneous or not spontaneous at this temperature and pressure? kJ JK-1 mol-1
2H20(g) + 3N2(g) 2 2N20(g) + N2H4(g) If K, for the above reaction is 781.8 at 200.9 K, what is Kp for the same reaction? (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 12.3 and 120. and -123)
6. Consider the reaction noitos to 38H HCI + NaOH → NaCl + H,O 2noiteonO ded-teo1 Which you also performed in the experiment Stoichiometry of Two Reactions. Given the information below: Initial temperature °C maa HCl solution 22 NaOH solution 22 o oulsd 10 s Final temperature °C 26.1 madovs o oitoson or os W Temperature Change °C А. Calculate the amount of heat evolved when 15 mL of 1.0M HCl was mixed with 35 mL of 1.0 M NAOH. n 1g ieodl ni agnerto sd es bonlhal d welsto sYT В. Calculate AH° per mole of water formed from this data: Heat evolved Joules kilojoules/mole