For 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 O b. 93.75 K O C. 360 K O 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 O b. 304.66 mol O c. 30.466 mol O d. None of the Choices 16. Determine the work performed by the gas. Use R= 8.3145 J/mol-K 1 point a. 1672 J b. 2494.35 J C. 7981.92 J d. 5487.57 J17. Determine the change in internal energy during the process. Cv=3/2 1 point a. 8231.355 J b. 2508 J O Option 3 O d. None of the choices 18. Determine how much heat energy was transferred. 1 point a. 836 J b. 9903.355 J C. 7981.92 J O d. 4180 J