11. How much work does a gas perform at a constant pressure of 8.4 atm 1 point as it expands from a volume of 2.0 L to 4.5 L? a. 2127 J b. 54.6 J C. 21 J O d. 206.01 J For items 12-13. There is a rigid chamber containing a 2.4L gas having 300 K and a pressure of 4.8 atm. 300 K Gas 4.8 atm12. What should be the temperature of the outside air to decrease the 1 point pressure of the gas. O a. 200 K b. 350 K O C. 400 K O d. None of the choices 13. How much work is done by or on the gas if the pressure is decrease 1 point from 4.8 atm to 3.4 atm? O a. O J O b. 420 J O C. 3.36 J O d. 720 JFor items 14-18. An ideal monoatomic gas expands from 2.5 L at 300 K to 8.0 L at a constant pressure of 3.0 atm 14. Determine the temperature when the volume is expanded to 8.0 L. 1 point a. 960 K b. 93.75 K C. 360 K d. 800 K 15. Determine how many moles of gas are present if the R=0.08206 L- 1 point atm/mol-K a. 0.30466 mol b. 304.66 mol O c. 30.466 mol O d. None of the Choices16. Determine the work performed by the gas. Use R= 8.3145 J/mol-K 1 point a. 1672 J b. 2494.35 J O C. 7981.92 J O d. 5487.57 J 17. Determine the change in internal energy during the process. Cv=3/2 1 point a. 8231.355 J b. 2508 J O Option 3 d. None of the choices 18. Determine how much heat energy was transferred. 1 point O a. 836 J O b. 9903.355 J O C. 7981.92 J O d. 4180 J