1) kc = [CH4][H2O]/[CO][H2]^3
2)Calculate Qc using the same expression
check if Qc>Kc or less than Kc
if it is greater it means more products are there so it will shift to left and if it is less it means more reactants are there so it will shift to the right .
3)kp = kc *RT^(delta n)
here delta n = 4-2=2
4)delta G =-RTln K
5)If the reaction is going in the direction of the products on increasing temperature it means it is endothermic in nature.why?Try to figure out using le chatelier's principle
6.volume is inversely proportional to pressure.so if we increase volume it will shift in the direction of less pressure ie less number of moles(reactants).Figure out what will happen if you decrease volume?
7.New Kc =1/ 5.2 because equation is reversed.