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Home/standard enthalpy

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Asked: June 24, 2020In: Thermodynamics & Rate Processes

GATE MT 2018 Q39.

For the reaction: 4Ag(s, pure) + O2(g) ⟶ 2Ag2O(s, pure), the standard enthalpy change, ∆𝐻0 = − 61080 J, and the standard entropy change, ∆𝑆0 = − 132.22 J K−1, in the temperature range from 298 K to 500 K. The ...Read more

For the reaction: 4Ag(s, pure) + O2(g) ⟶ 2Ag2O(s, pure), the standard enthalpy change, ∆𝐻0 = − 61080 J, and the standard entropy change, ∆𝑆0 = − 132.22 J K−1, in the temperature range from 298 K to 500 K.

The temperature above which Ag2O decomposes in an atmosphere containing oxygen at a partial pressure 𝑝𝑂2    = 0.3 atm is              (in K to one decimal place).

Given: Gas constant R = 8.314 J K-1 mol-1

 

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