a 7. Using the same graph as in #6, estimate the pressure of 1 mol of He in a 20-L container at 600 K by interpolation. Do this first by: (a) visual estimation (0.5 point) (b) calculating the value using the equation given on the graph (show your work) (1 point) PRESSURE OF 1 MOL OF HELTUM IN A 20-L CONTAINER 3 2.5 2 2 PRESSURE (atm) 1.5 1 y = 0.0041x + 0.0042 R? = 0.9985 0.5 0 100 T 800 200 300 400 500 600 700 TEMPERATURE (K)