Question

4 NH3(g) + 5 O2(g) right arrow 825 4 NO(g) + 6 H2O(g) how do i calculate the equilibrium constant at 825 degreesC?.

Answer 1

what data do you have?

Answer 2

delta h naught=-908
delta s naught=181
delta g naught=-962
I don't know what K is and in the question it also says to assume delta h naught and delta s naught do not depend of temperature

Answer 3

hmm have you tried: \(\Delta G=\Delta H-T\Delta S=-RT*ln(K)\) ?

Answer 4

No because I can't find the value for K.

Answer 5

you can find the value of K at STP because you're given \(\Delta G^o \)("knot)" . After you can use the vant hoff equation to find K at 825