G0
=
H0 - T
S0
if
G0 negative reaction is spontaneous
H0
= T
S0
T =
H0 /
S0
T = 248.6 / (278.7 / 1000) = 248.6 / 0.2728
T = 911 K
below 911 K reaction is spontaneous .
2. The reaction N2 (g)+3 F2 (g)2 NF3 (g), has AH° is -248.6 kJ mol and...
- The reaction N2(g) + 3 F2 (g) → 2 NF3 (9), as A Hºis -248.6 kJ mol- and ArSº is -278.7 JK moll. Calculate the temperature at which the eaction will be at equilibrium. Assume A Hº and A Sº are independent of temperature. - Condensation of a gas to a liquid is an example of a process for which (choose one or more): (a) AH, AS, and AG are negative at all temperatures. (b) AH, AS, and AG...
N2(8) + 3F2(g) → 2 NF3() AH 298 = - 264 kJ mol-'; AS98 = - 278 J K-'mol-' The following questions relate to the synthesis reaction represented by the chemical equation in the box above. a. Calculate the value of the standard free energy change, AG 298. for the reaction. b. Determine the temperature at which the equilibrium constant, Keg, for the reaction is equal to 1.00. (Assume that Hº and AS are independent of temperature.) c. Calculate the...
23. What is AS for the reaction, N2(g) + 3 F2(g) → 2 NF3(g), based on the data table (below)? a. -133.6 J/K b. -278.4 J/K c. +127 J/K d. +521.2 J/K Compound S, J/mol K N2(g) 191.5 F2(g) 202.7 NF3(g) 260.6
Consider the reaction: at N2(g) + 3 F2 (g) --> 2 NH3(g) AH° = -249 kJ AS° = -278 25 C K Calculate AGº and state whether the equilibrium composition contains mostly products or reactants at standard conditions. AG --332 kJ The equilibrium composition contains mostly reactants. AG = :-166 kJ The equilibrium composition contains mostly products. AG -6.7 kJ The equilibrium composition contains mostly products. O AGⓇ = +29.0 kJ The equilibrium composition contains mostly products. = AG +82.6...
For the reaction N2(g) + O2(g)->2NO(g) AH° = 180.6 kJ and AS = 24.9 J/K The equilibrium constant for this reaction at 267.0 K is Assume that AHⓇ and ASº are independent of temperature.
For the reaction CO2(g) + H2(9)—-CO(g) +H30(9) AH° = 41.2 kJ and A Sº = 42.1 JK The equilibrium constant for this reaction at 252.0 K is Assume that AH and AS are independent of temperature. For the reaction N2(g) + 3H2(g) 2NH3(g) AH° = -92.2 kJ and AS™ = -198.7 J/K The equilibrium constant for this reaction at 347.0 K is Assume that AHⓇ and AS are independent of temperature.
For the reaction N2(g) + O2(g)2NO(g) AH° - 180.6 kJ and AS - 24.9 J/K The equilibrium constant for this reaction at 301.0K is Assume that A Hº and AS are independent of temperature. Submit Answer Retry Entire Group 8 more group attempts remaining
11.
For the reaction Fe2O3(s) + 3H2(g) +2Fe(s) + 3H2O(g) AH° = 98.8 kJ and AS° = 142.5 J/K The equilibrium constant for this reaction at 345.0 K is Assume that AHⓇ and AS are independent of temperature. For the reaction 2502(g) + O2(g) +2503(g) AH° = -197.8 kJ and AS° = -187.9 J/K The equilibrium constant for this reaction at 272.0 K is Assume that AH° and AS are independent of temperature.
For the reaction 2 BrF3(g) - Br2(g) + 3 F2(g) AG° = 470.3 kJ and AH° = 542.1 kJ at 267 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 267 K. The entropy change for the reaction of 2.38 moles of BrF3(g) at this temperature would be J/K.
Consider the reaction: AS° -278 J K N2 (g) + 3 F2 (g) --> 2 NH3(g) AH = –249 kJ at 25 C Calculate AGº and state whether the equilibrium composition contains mostly products or reactants at standard conditions. O AG° = –166 kJ The equilibrium composition contains mostly products. 0 AG = -6.7 kJ The equilibrium composition contains mostly products. O AG° = +82.6 kJ The equilibrium composition contains mostly reactants. O AGⓇ = -332 kJ The equilibrium composition...