Equlibriums! Help!!

Equlibriums! Help!!

For the reaction N2(g) + O2 (g) (double arrows) 2NO (g)

Kc= 1x 10^-30 at 25 °C at Kc= 0.10 at 2000 °C. Starting with 0.040 moles/;iter N2 and 0.10 moles/liter O2 calulate euilibirum concentration of NO.

a) at 2000 °ç

b) at 25°C