1)At the start of a reaction, there are 0

1)At the start of a reaction, there are 0.249 mol N2, 3.21 x 10-2 mol H2, and 6.42 x 104 mol Nth in a 3.50 L reaction vessel at 375°C. If the equilibrium constant (1(c) for the reaction is 1.2 at this temperature, decide whether the system is at equilibrium (8'). If it is not, predict which way the net reaction will proceed. (10') 
N2(g) + 3H2(g)_ 2NH3(g) 
2)Consider the following equilibrium process between dinitrogen tetrafluoride (N2F4) and nitrogen difluoride (NF2): (20') N2F4(g) 2NF2(g) Alf° = 38.5 lc.I/mol Predict the changes in the equilibrium and K (15') 1) the reacting mixture is heated at constant volume. 2) some N2F4 gas is removed from the reacting mixture at constant temperature and volume. 3) the pressure on the reacting mixture is decreased at constant temperature. 4) a catalyst is added to the reacting mixture.