WebExpert Answer. Which of the following reactions represents the standard enthalpy of formation, delta H degree_f, for methane gas, CH_4 (g)? Choose one: A. CH_4 (l) … Web26 apr. 2024 · Methane: CH4(g)-74,850: What is enthalpy of formation of water? What is the standard enthalpy of formation of h2 G at 25 C? 218 kJ/mol. Why does H2 have no …

Methane Thermodynamic Properties Table - Engineers Edge

WebEnthalpies of combustion of carbon, hydrogen, and methane are -393 kJ, -286 kJ, and -890 kJ, respectively. Calculate the enthalpy of the formation of methane... WebWhich of the following reactions represents the standard enthalpy of formation, delta H degree_f, for methane gas, CH_4 (g)? Choose one: A. CH_4 (l) rightarrow CH_4 (g) B. 2C (s, graphite) + 4H_2 (g) rightarrow 2CH_4 (g) C. C (s, graphite) +2H_2 (g) rightarrow CH_4 (g) D. CH_4 (g) rightarrow C (g) + 4H (g) E. C (g) +4H (g) rightarrow CH_4 (g) high gear padded suit

2 HF (g) → F- (g) + [HFH]+ (g, singlet)

WebStandard Enthalpy of Formation. Standard enthalpy of formation is defined as the enthalpy change when one mole of a compound is formed from its elements in their … Web6 jan. 2016 · DeltaH_"f"^@ = -"67.2 kJ/mol" The standard enthalpy of formation, DeltaH_"f"^@, for a given compound is defined as the enthalpy change of reaction when … WebCO2(g) + 2H2O(l) delta Hf CO2(g) = –394 kJ mol–1 delta Hf H2O(l) = –286 kJ mol–1 delta Hf CH4(g) = –75 kJ mol–1 ANSWER:-891 KJmol (i know how to do this par t) Cant do … high gear low gear