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gibb’s free energy problems worksheet gibb’s free energy problems worksheet answer feel free to question my math also sig figs 1 the hydrogenation of ethene gas under standard conditions t = 298 15 k shows a decrease in disorder Δs˚ = 0 1207 kj mol•k during an exothermic reaction Δh˚ = 136 9 kj mol determine whether the reaction is spontaneous or nonspontaneous by calculating Δg˚ c 2 h 4 g h 2 g worksheet gibbs free energy in this worksheet we will practice calculating changes in molar gibbs free energy from standard molar entropy and enthalpy change data q1 ethane gas can be produced by the hydrogenation of gaseous ethene the standard entropies and enthalpies of formation for ethene and other materials are shown in the table gibb’s free energy problems worksheet b gibbs free energy would be negative the reaction has a positive entropy and a negative enthalpy Δg will be negative regardless of temperature 2 a ∆h° = 27 44 kcal b ∆g° = 18 7 kcal c ∆s° = 29 2 cal mole 1 k 1 3 a ∆g = 2 54 kcal non spontaneous b – 0 16 kcal spontaneous 4 a ∆s 0 the number of moles of gibb’s free energy problems worksheet gibb’s free energy problems worksheet the hydrogenation of ethene gas under standard conditions t = 298 15 k shows a decrease in disorder Δs˚ = 0 1207 kj mol•k during an exothermic reaction Δh˚ = 136 9 kj mol determine whether the reaction is spontaneous or nonspontaneous by calculating Δg˚ c2h4 g h2 g → c2h6 g exercise 4 63 – gibbs free energy calculations exercise 4 63 – gibbs free energy calculations q463 06 using the answers in question 7 above a identify which pound cuso 4 5h 2o s or cuso 4 h 2o s is more stable at 25ºc b use the values obtained in question 7 to determine the centigrade temperature above which the other pound is more stable q463 07 consider the following reaction n 2 g 3h 2 g 2nh 3 g a using average

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