Which of these statements are true? Select all that apply.
The Hrxn for the reaction C (s) + O2 (g) CO2 (g) is the same as the Hf for CO2 (g). The Hrxn for the reaction Na (s) + Cl2 (g) 2NaCl (s) is the same as the Hf for NaCl (s). The Hf for Br2 (l) is 0 kJ/mol by definition.
To determine the Hf for H2O (g), just reverse the sign of the Hrxn for the reaction 2H2O (l) 2H2 (g) + O2 (g).
The Hf for N2 (l) is 0 kJ/mol by definition.
The Hrxn for the reaction 1.5H2 (g) + 0.5N2 (g) NH3 (g) is the same as the Hf for NH3 (g).
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Home » Chemistry » Which of these statements are true? Select all that apply. The Hrxn for the reaction C (s) + O2 (g) CO2 (g) is the same as the Hf for CO2 (g). The Hrxn for the reaction Na (s) + Cl2 (g) 2NaCl (s) is the same as the Hf for NaCl (s).