be in a 36. At what temperatures will the following processes spontaneous? a. ?? -18 kJ...
At what temperatures will a reaction be spontaneous if AH = +59.0 kJ and 45º = -25.2 JK? at The reaction will be spontaneous at any temperature. The reaction will never be spontaneous O All temperatures below 94.1 K All temperatures above 94.1 K O Temperatures between 12.7 K and 135 K ot DE Submit Answer Try Another Version 1 item attempt remaining ot ot of of
For a given reaction, AH is 111 kJ and AS is -249 J/K. At what temperatures is the reaction spontaneous? A. T< 446 K B. None. The reaction is never spontaneous. C. The reaction is spontaneous at all temperatures. D.T> 73 K E.T>446 K
5) a) At what temperatures is a reaction spontaneous if it has a deltaH0rxn = -88 kJ/mol and a deltaS0rxn = -247 J/K mol. b) At what temperatures is a reaction spontaneous if it has a deltaH0rxn = -88 kJ/mol and a deltaS0rxn = +247 J/K mol. c) At what temperatures is a reaction spontaneous if it has a deltaH0rxn = +88 kJ/mol and a deltaS0rxn = -247 J/K mol. d) At what temperatures is a reaction spontaneous if it...
At what temperatures are the following reactions spontaneous? a) ΔH0 = -35 kJ/mol; ΔS0 = -75 j/Kˑmol b) ΔH0 = -35 kJ/mol; ΔS0 = +75 j/Kˑmol c) ΔH0 = +35 kJ/mol; ΔS0 = -75 j/Kˑmol d) ΔH0 = +35 kJ/mol; ΔS0 = +75 j/Kˑmol
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...
State whether following reactions are spontaneous at all temperatures, low temperatures, high temperatures or not spontaneous at any temperatures. (a) N2(g) + 3 F2(g) + 2 NF3(g) AH = -249 kJ (b) N()+ 3Cl2(g) → 2 NC13(g) AH = 460 kJ (e) NF4(8) 2 NF2(g) AH = 85 kJ
Question 3 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the reaction will be spontaneous. A. AS rxn= +100 J/K; AH rxn= +150 kJ [ Select] B. AS rxn= - 100 J/K; AH rxn= +200 kJ [Select]
At what temperature will a reaction be spontaneous? AH = +22.2 kJ/mol and AS = +81.1 J/K-mol and assume both do not vary with temperature. at T > 298 K at all temperatures at T < 298 K at T < 274 K at T> 274 K
4. Classify each of the following reactions as one of these four types: • spontaneous at all temperatures • not spontaneous at any temperature • spontaneous below a certain temperature but not above • spontaneous above a certain temperature but not below See Table 17.1 in Tro, Fridgen and Shaw. (a) CaH2 () + 2 H2O (1) + Ca(OH)2 (s) + 2 H2(g); AH = -230 kJ; (b) 2 NO(g) + Cl, (g) → 2 NOCI (g); AH= -78.4 kJ;...
B. For this reaction, AH=-54kJ/mol and AS=231/K•mol. At what temperatures is this reaction spontaneous? 23 kJ/kinol)