Suppose the pressure is 3.0 atm, and calculate the heat of reaction where hydrogen is combusted in the engine at 100C,3.0atm.

2H2 (g) + O2 (g) 2H2O(l)

The initial condition is in standard state.

The final condition is 90C,3atm.

The question need to be edit not 100C, it need to be 90C.

Table C.1: Heat Capacities of Gases in the Ideal-Gas State? Constants in equation CPig/R=A+BT+CT2+DT2 for T(K) from 298K to Tmax Table C.2: Heat Capacities of Solids Constants for the equation Cp/R=A+BT+DT2 for T(K) from 298K to Tmax 'Selected from K. K. Kelley. U.S. Bur. Mines Bull. 584, 1960, L. B. Pankratz. U.S. Bur, Mines Bull. 672.1982. Table C.3: Heat Capacities of Liquids Constants for the equation CP/R=A+BT+CT2 for T from 273.15 to 373.15K 'Based on correlations presented by J. W. Miller, Jr. G. R. Sehorr, and C. L. Yaws, Chem. Eng. vol. 83(23), p. 129,1976