CaCO3(s)⇄CaO(s)+CO2(g) When heated strongly, solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas, as represented by the equation above. A 2.0mol sample of CaCO3(s)is placed in a rigid 100.L1 reaction vessel from which all the air has been evacuated. The vessel is heated to 898°C898°C at which time the pressure of CO2(g) in the vessel is constant at 1.00atm1.00atm, while some CaCO3(s)remains in the vessel. (a) Calculate the number of moles of CO2(g) present in the vessel at equilibrium. b) Write the expression for Kp, the equilibrium constant for the reaction, and determine its value at 898°C (c) The experiment was repeated, but this time starting with a 4.0mol sample of CaCO3(s) On the following graph, draw a curve showing how the pressure of CO2(g)would change over time as the vessel is heated to 898°C  and equilibrium is established.

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

25. Professor Schwartz runs the same reaction given in problem 23, but starts from different initial concentrations of the reactants and products. He places 1.0 mol of NH3, 1.0 mol of N2, and 2.0 mol of H₂ and in a sealed 1.0 L container at T = 740 K. What is the initial value of the reaction quotient in Professor Schwartz' experiment? (A) Qc = 0.125 (B) Qc = 0.50 (C) Qc = 1.0 (D) Qc = 2.0 (E) Qc = 10.0

Problem 10 10 of 12 (> I Review | Constants | Periodic Table MISSED THIS? Watch IWE 18.7; Read Section 18.8. You can click on the Review link to access the section in your e Text. Consider the following reaction: Part A CaCO, (s) + CaO (s) + CO2 (g) 320 K Estimate AG for this reaction at each of the following temperatures (Assume that AH" and AS" do not change too much within the given temperature range.) Express your answer using one decimal place. Πνn ΑΣ φ AG = kJ Submit Request Answer Part B 1080 K Express your answer using one decimal place. AG = kJ Submit Request Answer Part C 1410 K

When exposed to UV light, phosgene (COCL2) decomposes according to the reaction COCL2(g)->CO(g) + Cl2(g). All the air is removed from a flask. The flask is then filled with phosgene to a pressure of 2.8 atm and then exposed to UV light. If the temperature remains constant during the decomposition, what is the partial pressure of Cl2 (g) in the flask after the decomposition is complete, assuming 100% yield?

Q/Find the right choice 1-The general formula of alkyl halide is ....... CnH2n + x Cn(H2n-1) + x CnH2n + 2x CnH2n

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Please show all steps clearly to this problem. Thanks

The Scenario Professor Ndekele asks you to test a new low temperature catalyst for the decomposition of ammonia, NH3. With previously existing catalysts decomposing ammonia requires a temperature of 450 ºC, but this new catalyst is said to be effective at a temperature of 100  ºC!   You plan to heat ammonia gas with the catalyst in a flask connected to a manometer and track the reaction by the change in pressure, which should increase as the temperature increases and as the reaction progresses and the number of moles of gas increases via the balanced chemical equation: 2 NH3 (g) → N2 (g) + 3 H2 (g) You make the following observations.   Observations Vflask = 1.00 L Patm = 630.5 mmHg TRoom = 23.2  ºC Before heating h = 0.00 As you heat the flask, the mercury falls on the flask side of the manometer and rises on the open end.  At 100.0  ºC, the height difference in the flask is 65.5 cm.   Analysis **convert all T-values to K for gas law calculations! Use the ideal gas equation to…

Calculate the pressure equilibrium constant KP for the equilibrium between nitrogen monoxide, oxygen, and nitrogen dioxide has the final temperature of the mixture round your answer to two significant digits.