1. A few years ago, there was an explosion in Vankleek Hill, near Ottawa, that levelled one home and damaged three others. The cause of the explosion was believed to be a natural-gas leak. Assume that natural gas (assume 100\% CH4 ) leaked into a basement and was premixed at =0.8 before igniting and evolving into a C-J detonation wave. a. Assuming complete combustion with no dissociation, use the analytic procedure outlined in class estimate the detonation velocity and pressure rise that might have occurred. b. Compare your calculation in part (a) with a calculation using CEA at the same conditions but allowing for complete dissociation. Comment on the differences