Consider the reaction H2CO(g) + 02(g) CO2(g) + H,0(1) for which AH° = -563.3 kJ and AS° = -140.5 J/K at 298.15 K. %3D (1) Calculate the entropy change of the UNIVERSE when 2.085 moles of H2CO(g) react under standard conditions at 298.15 K. ASuniverse = J/K (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored choose 'reactant favored'.

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

Consider the reaction: 2BRF3(g)Br,(g) + 3F2(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.06 moles of BrF3(g) react at standard conditions. AS°. system J/K

Given the following reaction and using the data in the table, determine the order of the reaction:2NO2(g)→2NO(g)+O2(g) Time (sec) [NO2 ] ln [NO2 ] 1/[NO2 ] 0 0.0100 -4.605 100 100 0.00648 -5.039 154 200 0.00479 -5.341 209 300 0.00380 -5.573 263 400 0.00315 -5.760 317 500 0.00269 -5.918 372 600 0.00235 -6.057 426   a. none of these b. second c. zero d. third e. first

The growth of baker's yeast (Saccharomyces cerevisiae) on glucose under anaerobic conditions can be described by the following equation:C6H12O6 + β NH3 → 0.59 CH1.74N0.2O0.45 + 0.43 C3H8O3 + 1.54 CO2 + 1.3 C2H5OH + 0.036 H2O a) Determine the value of the biomass yield coefficient YX/Sb) Determine the values of the yield coefficients in products YEtOH/S and Yglycerol/Sc) Calculate the value of the coefficient β

Consider the following reaction in a sealed vessel kept at constant temperature: A(g)  ⇌  2B(g) If the reaction is started with 2.0 mol of A and no B, the amount of B at equilibrium is 3.0 mol. How many moles of A should one start with to obtain 6.0 mol of B at equilibrium under the same conditions (same vessel, same temperature, no gas B present initially)?   A.  5.6 mol   B.  5.0 mol   C.  4.0 mol   D.  6.0 mol   E.  6.5 mol

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

The equilibrium constant for the reaction of nitrogen and hydrogen to give ammonia is 0.118 at 745 K. The balanced equilibrium equation is as follows: N2(g) + 3H₂(g) = 2NH3(g) What is Kp for this reaction at the same temperature? (R: 0.082 L atm/mol.K)

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