Ag can be eroded by gaseous H2S via reaction: H2S(g) + 2Ag(s) → Ag2S(s) + H2(g). Under ambient condition (i.e. 298 K, 1...
Ag can be eroded by gaseous H2S via reaction: H2S(g) + 2Ag(s) → Ag2S(s) + H2(g). Under ambient condition (i.e. 298 K, 1 atm), AfGº of Ag2S(s) and H2S(g) are -40.26 kJ.mol-? and -33.02 kJ.mol“!, respectively. Please answer: (a) Whether Ag will be eroded to form Ag2S(s) when it is exposed to a mixture of H2S(g) and H2(g) with Vhys : VH2 = 1:1 under ambient condition. (b) What is the maximum mole fraction of H2S(g) in the H2(g)/H2S(g) mixture that ensures that Ag will not be eroded.