Calculate the percentage change (%) in Kx for the reaction when the total pressure is increased form 1.0 bar to 3.0 bar at constant temperature. H2CO (g) = CO (g) +  H2 (g). Please enter a number between 1 to 100

Please solve ASAP Butene is obtained as a result of the dimerization reaction of ethylene: 2C2H4(g) → C4H8(g) Ethylene/Nitrogen mixture is fed to a reactor at 150 °C. Ethylene/Nitrogen mole ratio 0.5 is In the reaction with 75% conversion of ethylene, the products leave the reactor at 300 °C. If so, what is the heat of reaction?

If 50.0 g of H₂ and 125.5 g of O₂ react, how many moles of H₂O can be produced in the reaction below? 2 H₂(g) + O₂(g) → 2 H₂O(g)

Write a balanced standard formation reaction and a balanced standard combustion reaction for each of the following compounds, and For each of the compounds in Q-9, calculate the standard enthalpy of combustion using enthalpies of formation from the table of thermodynamic properties  a) CH4 (methane)  b)  C6H12O6 (s) [ glucose ]

Consider the following dissolution of lead(II) fluoride (PbF>(s): O 5.9 kJ molr1 PbF>(s) - Pb2*(ag) + 2 F(ag) O 5.9 kJ mol1 Below is a table of thermodynamic quantities pertaining to this reaction: Submit Request Answer Substance AHP (kJ mol1) S° (J K-1 mol1) Part B PBF2(s) -664.0 110.5 Determine the standard entropy of reaction (A,S°) for the dissolution of lead(II) fluoride. Pb2*(aq) 0.9 18.5 O 119.6 J K1 mol1 F(ag) -335.4 -13.8 O -105.8 J K1 mor1 O 119.6 J K1 mor1 O 105.8 J K-1 mol1

Consider the following reaction: 10 KNO3(s) +8 C(s) +3 S(s) 2 K2CO3(s) + 3 K,SO,(s) + 6 CO2(g) + 5 N2(g) you mix 0.75 kg of KNO3 with 0.75 kg of sulfur in the presence of excess carbon and the reaction proceeds with 55% yield, what mass of gas-phase products (i.e., CO2 plus N2) will leave the reaction mixture? Show complete work including all calculations, units, appropriate significant figures, and 1-5 key words of explanation at each step of your calculation. If

For the following reaction at equilibrium in a reaction vessel, which one of the changes below would cause the Br2 concentration to decrease?   2NOBr(g)   ↔   2NO(g) + Br2(g)         ΔH= 30 kJ/mol     Increase the temperature     Remove some NO     Add more NOBr     Compress the gas mixture into a smaller volume

1. An impure sample of compound A is contaminated with two impurities B and C. The sample is to be purified by recrystallization using ethanol as the solvent. The solubility properties of the three components are summarized below. Solubility in Solubility in ethanol Solubility in 50 mL Solubility in 50 mL ethanol at -78 °C at - 0°C ethanol at -78 °C ethanol at - 0°C (g) (g) Compound A 0.12 g/mL 0.02 g/mL Impurity B 0.58 g/mL 0.04 g/mL Impurity C 0.005 g/mL 0.0003 g/mL The impure (7.5 g) sample contains 5.0 g of compound A, 1.5 g of B and 1.0 g of C and is recrystallized using 50 mL of ethanol. The sample is boiled with 50 mL of ethanol, filtered by gravity and then cooled in ice and filtered by suction. a) How much compound A should be obtained as the final product? Will the sample be contaminated with any of the impurities? Explain (using calculations to support your answer-fill in the missing masses in the table above). Hint: For this question you should calculate the mass of each…

1. Cyclohexane can be produced from the hydrogenation of benzene according to the reaction C6H6 (g) + 3 H2 (g) ­--> C6H12 (g)                                              Ka = 1.371 at 550 K The reactor temperature is 550K and hydrogen to benzene feed mole ratio is 4.5:1. Estimate the gas composition under equilibrium conditions if the reactor pressure is 30 bar. The following fugacity coefficients are obtained for the species involved: Fugacity coefficient (550K, 30 bar) Cyclohexane 0.907 Benzene 0.919 Hydrogen 1.003

How many electrons are transferred in the following process, given the unbalanced reaction? PbO2 (s) + H* (aq) + Fe (s) → Fe3+(aq) + Pb2+ (aq) + H20 (1) Group of answer choices A-1 В-2 C-6 D-4 Е-3