/2018 1159 PM 28.6/5o \".Pnnt Calculator led Periodic Table tion 7 of 7 eneral C
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Question
/2018 1159 PM 28.6/5o ".Pnnt Calculator led Periodic Table tion 7 of 7 eneral Chemistry 4th Edition University Science Books presented by Sapling Leaming Mapo The following equation represents the decomposition of a generic diatomic element in its standard state. Assume that the standard molar Gibbs energy of formation of X(g) is 5.65 kJ mol ' at 2000. K and -62.35 kJ mol at 3000. K. Determine the value of K (the thermodynamic equilibrium constant) at each Number K at 2000. K712 Number K at 3000. - Assuming that AH nn is independent of temperature, determine the value of Atfran from these data. Number kJ. mol Previous Give Up& View Solution Check Answer Next ExtExplanation / Answer
DG0 = - RTlnK
DG0 = 5.65 kj/mol
R = 8.314 j.k-1.mol-1
T = 2000 k
K = equilibrium constant = ?
5.65*10^3 = -8.314*2000lnK
K = 0.712
DG0 = - RTlnK
DG0 = -62.35 kj/mol
R = 8.314 j.k-1.mol-1
T = 3000 k
K = equilibrium constant = ?
-62.35*10^3 = -8.314*3000lnK
K = 12.18
clasius-clepyron equation
ln(k2/k1) = DH0rxn/R[1/T1 - 1/T2]
k2 = 12.18, T2= 3000 k
k1 = 0.712, T1 = 2000 k
heat of vaporisation (DHvap) = x kj/mol
ln(12.18/0.712) = (x/(8.314*10^-3))((1/2000)-(1/3000))
DH0rxn = 141.64 kj/mol
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