at high temperatures, ammonia decomposes to N2 and H2
2 NH3(g)--> N2 (g) + 3H2(g)
Delta H for the reaction is positive and delta S is positive.
Estimate the temperature at which this reaction becomes spontaneous
Homework Answers
7. The synthesis of ammonia from the elements is conducted at high pressures and temperatures: N2(g)...
7. The synthesis of ammonia from the elements is conducted at high pressures and temperatures: N2(g) +3 H2(g) 2 NH3(g) Suppose that at one stage in the reaction, 13 mol NH3, 31 mol N2, and 93 mol H2 are present in the reaction vessel at a total pressure of 210 atm. Calculate the mole fraction of NH3 and its partial pressure.
At high temperatures, solid ammonium chloride decomposes into gaseous ammonia and hydrogen chloride. NH4Cl (s) ⇌...
At high temperatures, solid ammonium chloride decomposes into gaseous ammonia and hydrogen chloride. NH4Cl (s) ⇌ NH3 (g) + HCl (g) a) An excess of ammonium chloride was introduced into an evacuated container. After raising the temperature to 340 ° C, the pressure was measured 1.013 bar. Calculate the equilibrium constant at this temperature. (4p) b) A container of volume 1.00 dm3 initially contained 0.0200 moles of ammonia. What are the partial pressures for ammonia and hydrogen chloride after an...
The Haber process for the production of ammonia involves the equilibrium N2(g) + 3 H2(g) ⇌...
The Haber process for the production of ammonia involves the equilibrium N2(g) + 3 H2(g) ⇌ 2 NH3(g) Assume that Δ H° = -92.38 kJ and ΔS° = -198.3 J/K for this reaction do not change with temperature. a. Without doing calculations, predict the direction in which ΔG° for the reaction changes with increasing temperature. Explain your prediction. b. Calculate ΔG° at 25 °C and 500 °C. c. At what temperature does the Haber ammonia process become nonspontaneous? d. Calculate...
Nitrogen and hydrogen gases are combined at high temperatures and pressures to produce ammonia, NH3. If...
Nitrogen and hydrogen gases are combined at high temperatures and pressures to produce ammonia, NH3. If 100. g of N2 is reacted with excess H2, what number of moles of NH3 will be formed?
Ammonia (NH3) is formed via the following reaction between hydrogen (H2) and nitrogen (N2): 3H2(g) +...
Ammonia (NH3) is formed via the following reaction between hydrogen (H2) and nitrogen (N2): 3H2(g) + N2(g) 22 NH3(g) For a particular experiment at equilibrium, it was found that the molar concentrations of the three species were as follows: [H2(g)] = 0.162 M, [N2(g)] = 0.100 M. and [NH3(g)] = 0.0100 M. What is the equilibrium constant (K) for this experiment? 4.25 0.617 1.622 0.412 0.235
For the reaction H2(g) + S(s) --> H2S(g) delta H = -20.2 kJ mol-1 and delta...
For the reaction H2(g) + S(s) --> H2S(g) delta H = -20.2 kJ mol-1 and delta S =+43.1 J K-1mol-1. Which of the following statements is true? The reaction is spontaneous at all temperatures. delta G becomes less favorable as T is raised. The reaction is only spontaneous at high temps. The reaction is only spontaneous at low temps. The reaction is at equilibrium at 25 C under standardconditions. Please explain why too. Thank you, feedback will beawarded as soon...
QUESTION 4 Ammonia decomposes at very high temperature according to the following overall reaction: NH3(g) -> NH...
QUESTION 4 Ammonia decomposes at very high temperature according to the following overall reaction: NH3(g) -> NH2(g) + H(g) A chemist has performed this reaction and measured the ammonia concentration versus reaction time. She then plotted the data in three different ways: y = -0.3784x + 78.54 Y = -0.0059x +4.3707 y = 9E-05x +0.0125 Based on these plots, what is the reaction order with respect to NH3? Zero order First order
The synthesis of ammonia by the Haber process occurs by the reaction 3 H2(g)= 2 NH3(g)...
The synthesis of ammonia by the Haber process occurs by the reaction 3 H2(g)= 2 NH3(g) AH° and AS N2(g) at 400 °C.Using data from Appendix D and essentially unchanged in the temperature interval from assuming that are 25 to 400 °C, estimate Kat 400 °C
The synthesis of ammonia by the Haber process occurs by the reaction 3 H2(g)= 2 NH3(g) AH° and AS N2(g) at 400 °C.Using data from Appendix D and essentially unchanged in the temperature interval...
Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the...
Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation 3H2(g)+N2(g)→2NH3(g) NOTE: Throughout this tutorial use molar masses expressed to five significant figures. How many molecules (not moles) of NH3 are produced from 4.21×10−4 g of H2?
You work in a factory that makes ammonia gas. Nitrogen gas (N2) and hydrogen gas (H2)...
You work in a factory that makes ammonia gas. Nitrogen gas (N2) and hydrogen gas (H2) react to make ammonia gas (NH3). N2(g) + 3H2(g) → 2NH3(g) You know that this process gives a 55% yield for ammonia. Your job is to make 610 g of ammonia. What mass of nitrogen do you need?
7. The synthesis of ammonia from the elements is conducted at high pressures and temperatures: N2(g) +3 H2(g) 2 NH3(g) Suppose that at one stage in the reaction, 13 mol NH3, 31 mol N2, and 93 mol H2 are present in the reaction vessel at a total pressure of 210 atm. Calculate the mole fraction of NH3 and its partial pressure.
Ammonia (NH3) is formed via the following reaction between hydrogen (H2) and nitrogen (N2): 3H2(g) + N2(g) 22 NH3(g) For a particular experiment at equilibrium, it was found that the molar concentrations of the three species were as follows: [H2(g)] = 0.162 M, [N2(g)] = 0.100 M. and [NH3(g)] = 0.0100 M. What is the equilibrium constant (K) for this experiment? 4.25 0.617 1.622 0.412 0.235
QUESTION 4 Ammonia decomposes at very high temperature according to the following overall reaction: NH3(g) -> NH2(g) + H(g) A chemist has performed this reaction and measured the ammonia concentration versus reaction time. She then plotted the data in three different ways: y = -0.3784x + 78.54 Y = -0.0059x +4.3707 y = 9E-05x +0.0125 Based on these plots, what is the reaction order with respect to NH3? Zero order First order
The synthesis of ammonia by the Haber process occurs by the reaction 3 H2(g)= 2 NH3(g) AH° and AS N2(g) at 400 °C.Using data from Appendix D and essentially unchanged in the temperature interval from assuming that are 25 to 400 °C, estimate Kat 400 °C
The synthesis of ammonia by the Haber process occurs by the reaction 3 H2(g)= 2 NH3(g) AH° and AS N2(g) at 400 °C.Using data from Appendix D and essentially unchanged in the temperature interval...
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