Please answer both!!!!

A student ran the following reaction in the laboratory at 291K : 2NO(g)+Br2(g)2NOBr(g) When she introduced 0.155 moles of NO(g) and 0.112 moles of Br2(g) into a 1.00 liter container, she found the equillbrium concentration of NOBr(g) to be 0.117M. Calculate the equllibrium constant, Kc, she obtained for this reaction. Kc= N2(g)+3H2(g)2NH3(g) When she introduced 0.0367 moles of N2(g) and 0.0698 moles of H2(g) Into a 1.00 liter container, she found the equillbrium concentration of H2(g) to be 0.0682M. Calculate the equilibrium constant, Kc, she obtained for this reaction