At 1000.K, H o R = 123.77 kJ mol 1 for the reaction N 2 (g) +
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At 1000.K, ΔHoR = –123.77 kJ mol–1 for the reaction N2(g) + 3H2(g) → 2NH3(g), with CP,m = 3.502R, 3.466 R, and 4.217 R for N2(g), H2(g), and NH3(g), respectively. Calculate ΔHof of NH3(g) at 450.K from this information. Assume that the heat capacities are independent of temperature.
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