The balance between
calculate the equilibrium constant for the reaction:
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Chemistry
- In the synthesis of ammonia from nitrogen and hydrogen, N2(g) + 3 H(g) → 2 NH3(g), Kc = 9.60 at 300°C. Calculate Kp.arrow_forwardThe Kp values for the following reaction are 1.66 x 10−5 and 6.27 x 10−3 at 30.0 oC and 70.0 oC respectively. What is ΔHo (kJ) for the reaction? 2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)arrow_forwardMost of the coal available in the United States is bituminous or "soft" coal, which contains as much as 5% sulfur by weight. When this coal is burned, the sulfur reacts with oxygen to form sulfur dioxide gas. When the sulfur dioxide gas dissolves in raindrops, it forms sulfuric acid. This is how we get acid rain. Here is the reaction that produces sulfur dioxide gas when soft coal is burned: Sg (s) + 80₂(g) → 850₂ (g) 2 Suppose an engineer decides to study the rate of this reaction. He prepares four reaction vessels with 159.6 g of solid sulfur and 27.0 g of oxygen gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature A B C D…arrow_forward
- 4. Which is an example of a heterogeneous equilibrium system? * a. 2H,(g) + 0,(g) 2H,0(g) b. NO,(g) + NO(g) N,0,(g) c. PCI,(g) PCI,(g) + Cl,(g) d. Cu²+(aq) + 20H (aq) = Cu(OH),(s) e. Fe+(aq) + SCN-(aq) FESCN2+(aq) a O barrow_forwardWhen in 1 atm of pressure, when is the reaction of formation of ozone from oxygen spontaneous? 3 O2 (g) → 2 O3 (g)arrow_forwardA chemist fills a reaction vessel with 6.56 atm methanol (CH₂OH) gas, 5.57 atm oxygen (O₂) gas, 3.98 atm carbon dioxide (CO₂) gas, and 7.29 atm water (H₂O) gas at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: 2CH₂OH(g) +30₂(g) ⇒2CO₂(g) + 4H₂O(g) Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule. kJ X ?arrow_forward
- 3Pe (g) + 4H2O (g) <-> Pe3O4 (s) + 4H2 (g) ΔHo= 672 kJ/mol choose all of the disturbances that will result in the production of more hydrogen. 1) temperature increased 2) adding Pe3O4 (s) 3) volume of system increased 4) H2O (g) increased 5) Removing Pe (g)arrow_forwardWhat is the equilibrium pressure of O 2(g), in bar, over a sample of NiO(s) at 298 K, given that Δ rG˚ = 208.2 kJ for the reaction: NiO(s) ↔ Ni(s) + ½O 2(g)?arrow_forwardThe following processes were all discussed in Chapter 18, “Chemistry of the Environment.” Estimate whether the entropy of the system increases or decreases during each process: diffusion of CFCs into the stratospherearrow_forward
- A student dissolves 13.2 g of potassium hydroxide (KOH)in 250. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 23.0 °C to 34.3 °C over the course of 7.5 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: KOH(s) K+ (aq) + OH(aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ per mole of KOH.…arrow_forwardA student dissolves 14.9 g of potassium hydroxide (KOH)in 300. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 23.0 °C to 33.0 °C over the course of 5 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: KOH(s) K+ (aq) + OH(aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 3 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ. per mole of KOH. rxn exothermic…arrow_forwardA student dissolves 11.7 g of potassium hydroxide (KOH)in 200. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 23.0 °C to 33.2 °C over the course of 3.6 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: KOH(s) K+ (aq) + OH (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ per mole of KOH.…arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning