Consider the equation carefully, and think about the sign of ∆S for the reaction it describes.
NH4Br (s) → NH3 (g) + HBr (g) ∆H = +188.3 kJ.
Which response describes the thermodynamic spontaneity of the reaction?
1. The reaction is spontaneous only at relatively high temperatures.
2. All responses are correct
3. The reaction is spontaneous at all temperatures.
4. The reaction is not spontaneous at any temperatures.
5. The reaction is spontaneous only at relatively low temperatures.
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