Ammonium is formed from Nitrogen(g) and Hydrogen(g). At 200 degree N(g) =2.0 atm , H(g) gas are transferred in sealed container.
At equilibrium, Ptotal(total Partial Pressure) = 2.0 atm. Calculate Kp.
Please solve it step by step. I am struggling to understand how to solve it.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added