l>H2 (g) + 1 Cl2 (g) → 2 HCl (g) - Stoichiomeattempt - Enthalpy • Entropy • Gibbs Free Energy - Equilibrium Constant

You are watching: H2(g)+cl2(g)→hcl(g)

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Go into a mass or volume in among the boxes below. Upon hitting submit, the stoichiometric equivalents will certainly be calculated for the staying reactants and also products. All gases are assumed to be at STP.
 H2Mass: g orGas Volume: L Cl2Mass: g orGas Volume: L HClMass: g orGas Volume: L Heat Released: kJ

<2ΔHf(HCl (g))> - <1ΔHf(H2 (g)) + 1ΔHf(Cl2 (g))><2(-92.3)> - <1(0) + 1(0)> = -184.6 kJ-184.60 kJ(exothermic)

<2ΔSf(HCl (g))> - <1ΔSf(H2 (g)) + 1ΔSf(Cl2 (g))><2(186.77)> - <1(130.59) + 1(222.97)> = 19.98 J/K19.98 J/K(increase in entropy)

From ΔGf° values:<2ΔGf(HCl (g))> - <1ΔGf(H2 (g)) + 1ΔGf(Cl2 (g))><2(-95.31)> - <1(0) + 1(0)> = -190.62 kJ-190.62 kJ(spontaneous)

From ΔG = ΔH - TΔS:-190.56 kJ(spontaneous)

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