Q1.
since dG is negative, this is favoured towad the right
so this reaction is product favoued
for
dG = dH - T*dS
dH = dG + T*dS = -23.6 + 345*-(0.1987)
dH = -92.15 kJ/mol
for 1 mol of N2 --> -92.15
for 2.3 mol --> -92.15*2.3 = -211.945 kJ will be formed
Q2
This is once again -dG, so this is favoured toward products
Find Entopy given:
dG = dH - T*dS
dS = (dG-dH)/(-T)
dS = (-236.9 - -196)/(-325) = 0.1258 kJ/molK
this is per 2 mol of H2O2
for
1.57 moles --> 1.57/2*0.1258 = 0.098753 kJ/K = 0.098753*10^3 J/K = 98.75 J/K
Q3.
finally
dG = dH - T*dS = 98.8 -281*(0.1425) = 58.757 kJ
this must favour reactants, since it is positive with respect to dG value
So
dG when 1 mol reat --> 58.757 kJ
dG when 2.35 moles react --> 58.757*2.35 = 138.07 kJ
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ...
Consider the reaction 2CO(g) + 2NO(g) rightarrow 2CO_2(g) + N_2(g) for which Delta H degree = -746.6 kJ and Delta S degree = -198.0 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.514 moles of CO(g) react under standard conditions at 298.15 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...
Calculate S^0 of NH_3(g) for the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) using the following data: Delta G_f^0 of NH_3(g) = - 16 kJ/mol Delta H_f^0 of NH_3(g) = - 45.9 kJ/mol S^0 of H_2(g) = 131 J/mol. K S^0 of N_2(g) = 191.5 J/mol. K
K_p for NH_3 at 25 degree C N_2 (g) + 3 H_2(g) irreversible 2 NH_3 (g), Delta G degree = -31.0 kJ consider the galvanic cell that uses the reaction 2 Ag^+ (aq) plus Cu(s) rightarrow Cu^2+ (aq) + 2Ag (s) clearly sketch the experimental set-up, write down the anode and cathode half- give the shorthand notation for the cell For the following cell, write a balanced equation for the cell reaction and calc Delta G degree C: Pt(s) |H_2(1.0...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction the equilibrium will shift if: N_2 is added? H_2 is removed? NH_3 is added? NH_3 is removed? the volume of the container is decreased? the pressure is increased by adding Argon gas? the reaction is cooled? equal number of moles of H_2 and NH_3 are added? a catalyst is added The equilibrium constant for the following reaction is 5.0 at 400 degree C. CO_(g)...
For the reaction 2 NO(g) + O2(g) 2 NO2(g) G° = -71.1 kJ and S° = -146.5 J/K at 294 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 294 K. The standard enthalpy change for the reaction of 1.67 moles of NO(g) at this temperature would be kJ.
For the reaction CH_(g) + H2O(g) +3H2(g) + CO(g) AH° = 206.1 kJ and AS° = 214.7 J/K The standard free energy change for the reaction of 1.73 moles of CH4(9) at 317 K, 1 atm would be kJ. This reaction is (reactant, product) favored under standard conditions at 317 K. Assume that AHⓇ and A Sº are independent of temperature. Submit Answer Retry Entire Group 9 more group attempts remaining For the reaction CH4(g) + H206) CH3CH2OH() AGⓇ =...
For the reaction Fe(s) + 2HCI(aq)FeCl2(s) + H2(g) ΔΗο--7.4 kJ and ΔS°-107.9 J/K The standard free energy change for the reaction of 2.11 moles of Fe(s) at 278 K, 1 atm would be -37.4kJ This reaction is (reactant, product) -78.9 favored under standard conditions at 278 K Assume that Δ Ho and Δ are independent of temperature. For the reaction N2(g) + O2(g)2 NO(g) Δσ 172.7 kJ and ΔS°-24.9 J/K at 318 K and 1 atm. This reaction is (reactant,...
For the reaction 4HCl(g) + O2(g)— *2H2O(g) + 2Cl2(9) AH' = -114.4 kJ and AS° = -128.9 J/K The standard free energy change for the reaction of 1.52 moles of HCI(g) at 320 K, 1 atm would be This reaction is (reactant, product) favored under standard conditions at 320 K. Assume that AH and AS are independent of temperature. For the reaction 2 SO2(g) +02(9) —2 SO3(9) AG° = -144.4 kJ and AS° = -187.9 J/K at 284 K and...
PLEASE ANSWER ALL 5 QUESTIONS (2 on standard entropy of reaction, 3 on Delta G) AND SHOW ALL WORK! *If you do not anticipate to answer all posted questions in given post, please leave unaswered for someone else to help me with them ALL* Consider the reaction: CaCo3(s) Cao(s)+Co2g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.20 moles of CaCOs(s) react at J/K AS system Submit Answer Consider the reaction: 2C2Ho(g)+702)4Co2(g)+ 6H20) Using...
Consider the reaction 2NO_2(g) rightarrow N_2O_4 (g). Using the following data, calculate Delta G degree at 298 K. Delta G degree (NO_2(g)) = 51.84 kJ/mol, Delta G degree (N_2 O_4 (g)) = 98.28 kJ/mol. Calculate Delta G at 298 K if the partial pressures of NO_2 and N_2O_4 are 0.37 atm and 1.62 atm, respectively. Express your answer using one significant figure.