Assuming each reaction is carried out in an open container for which of the following reaction(s) will ΔH=ΔE ?

1. ${H}_{2}\left(g\right)+B{r}_{2}\left(g\right)\to 2HBr\left(g\right)$

2. $C\left(s\right)+2{H}_{2}O\left(g\right)\to 2{H}_{2}\left(g\right)+C{O}_{2}\left(g\right)$

3. $PC{l}_{5}\left(g\right)\to PC{l}_{3}\left(g\right)+C{l}_{2}\left(g\right)$

4. $2CO\left(g\right)+{O}_{2}\left(g\right)\to 2C{O}_{2}\left(g\right)$

Subtopic:  Thermodynamics' Properties and process |
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NEET 2023 - Target Batch - Aryan Raj Singh