G = - RT lnK Where R = 8.314 J/ k mol T = 25+273 K = 298 K K= Equilibrium consta

Question

    G = - RT lnK                             Where R = 8.314 J/ k mol                                                                      T = 25+273 K = 298 K                                                                        K= Equilibrium constant = 81.9          =   8.314 J *298 K * ln 81.9     G = - 10,914.94KJ/mol    
Q= 2.55^2 / .326 x .221
Q=90.25

then i did G=G*initial + RTLNQ

-101914.94 + 8.314(298) ln (90.25)
i gpt +241 as an answer so the reaction is NOT spontaneous

is this correct?

Explanation / Answer

delG0 = -RTlnK = -8.314 J/mol/K *298K *ln(81.9) = -10914.94J/mol delG = delG0 + RTlnQ delG = -10914.94 J/mol + 8.314 J/mol/K *298K *ln(90.25) delG = 240.5 J/mol Correct,. except delG0 = -10914.94 J/mol not kJ/mol

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