Teaching UP TGT Mock Test Series 2025 General Science Chemistry Chemical Reaction

Calculate the enthalpy of formation of HI in the given reaction:

H2 + I2 → 2HI ΔH = 20.40 kcal/mol

1
20.40 kcal/mol
2
10.20 kcal/mol
3
(-) 10.20 kcal/mol
4
(-) 20.40 kcal/mol
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