Asample of nitrogen is initially at a pressure of 1.7 kpa, a temperature of -10 c and a volume of 7.5 m3. then the volume is decreased to 3.8 m3. the temperature is decreased to 200 k. what is the final pressure of the nitrogen gas?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?