It is known that r = V1/V2 is the compression ratio or expansion ratio for gasoline engines (gasoline engine) and y is the ratio of heat capacity. 1) Show that the thermal efficiency of the Otto cycle is given by the equation below this: 1 7 = 1 - 2) Determine the work done if it is known that r is 8.5, y is 1.4 and the heat is absorbed is 1400 kJ.

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