ch.6.2. calculate the internal energy change for a. one hundred(100.) joules of work is required to compress a gas. at the same time, the gas releases 26 J of heat. b. a piston is compressed from a volume of 9.95 L to 2.35 L against a constant pressure of 1.85atm. in the process, there is a heat gain by the system of 352 J. c. a piston expands against 1.50 atm of pressure from 18.2L to 34.4 L. in the process, 1987 J of heat is absorbed.

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A: The given reaction is : C3H8(g)  +  5O2(g)  →  3CO2(g)  +  4H2O(l)            ∆H=-2220 kJ

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