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The standard enthalpy of formation of gaseous H2O at 298 K is -241.82 kJ mol-1. Estimate its value at 75 °C given the following values of the molar heat capacities at constant pressure:
i. Cp [H2O(g)] = 33.58 J K-1 mol-1
ii. Cp [H2(g)] = 28.84 J K-1 mol-1
iii. Cp [O2(g)] = 29.37 J K-1 mol-1
Assume that the heat capacities are independent of temperature.
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What fraction of the O3 will have reacted when the rate falls to one-half of its initial value?
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At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
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