Standard enthalpies of formation of `O_(3),CO_(3),NH_(3) and HI` are 142.2,-383.2,-46.2 and +25.9kJ `mol^(-1)` respectively. The order of their increa

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Standard enthalpies of formation of `O_(3),CO_(3),NH_(3) and HI` are 142.2,-383.2,-46.2 and +25.9kJ `mol^(-1)` respectively. The order of their increa

Standard enthalpies of formation of `O_(3),CO_(3),NH_(3) and HI` are 142.2,-383.2,-46.2 and +25.9kJ `mol^(-1)` respectively. The order of their increasing stabilities will be:
A. `O_(3),CO_(2),NH_(3),HI`
B. `CO_(2),NH_(3),HI,O_(3)`
C. `O_(3),HI,NH_(3),CO_(2)`
D. `NH_(2),HI,CO_(2),O_(3)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
(i) Exothermic compounds are more stable than endothermic compounds
(ii) Greater is the amount of heat evolved in the formation of a compound, more will be its stability.

4 views Answered 2023-02-05 15:29