A rigid cylinder with a movable piston contains a sample of gas. At 300. k, this sample has a pressure of 240. Kilopascals and a volume of 70.0 milimeters. What is the volume of this sample when the temperature is changed to 150. K and the pressure is changed to 160. kilopascals? Based on the reading above, what is the initial volume?
1) 70 mL
2) 150 K
3) 160 kPa
4) 240 kPa

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