1. The problem statement, all variables and given/known data In a sealed drillhole with volume 0.80 dm ³ are 100 grams of ammonium nitrate, NH ₄ NO ₃. The explosive can be made to explode and disintegrate by the formula: 2 NH ₄ NO ₃ (s) -> 2N ₂ (g) + O ₂ (g) + 4H ₂ O (g) In the explosion moment - before the mountain exploded - there is a high pressure. What pressure gives the "gas law" theory, if the temperature is 1000 ° C? 2. Relevant equations P*V=n*R*T 3. The attempt at a solution P=? V= 0.8dm^3=0.0008m^3 n= 100/80.043 = c.a 1.25mol T = 1273.15 K R= 8.314 1.25*8.314*1273.15= c.a 13231 = P*V 13231/0.0008 = 16539014 kPa (This is what I am very uncertain of, I assumed that because I made 0.8dm^3 to m^3 I thought that the answer became in kPa. I then divided 13231 by 0,8dm^3 and got ~16538 (This I thought would be kPa and obviously doesn't make sense then). Can someone explain to me what is correct and why? I am a little bit confused.