Hydrogen_iodide_(data_page)

Hydrogen iodide (data page)

Chemical data page

This page provides supplementary chemical data on hydrogen iodide.

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Phase behavior
Triple point	? K (? °C), ? Pa
Critical point	424 K (151 °C), 8310000 Pa
Std enthalpy change of fusion, Δ_fusH^o	? kJ/mol
Std entropy change of fusion, Δ_fusS^o	? J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	19.76 kJ/mol
Std entropy change of vaporization, Δ_vapS^o	? J/(mol·K)
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	? kJ/mol
Standard molar entropy, S^o_solid	? J/(mol K)
Heat capacity, c_p	? J/(mol K)
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	? kJ/mol
Standard molar entropy, S^o_liquid	? J/(mol K)
Heat capacity, c_p	? J/(mol K)
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	26.5 kJ/mol
Standard molar entropy, S^o_gas	206.6 J/(mol K)
Heat capacity, c_p	29.2 J/(mol K)

Hydrogen iodide (data page)