If the standard enthalpy change (∆_{ {\r}} {\H}^{⊖}) for reaction {\H}_2( {\g})+ {\Br}_2( {\l}) \to 2 {\HBr}( {\g}) is -72.8 {\kJ}, the standard enthalpy of formation (∆_{ {\f}} {\H}^{⊖}) of {\HBr}( {\g}) (in {\kJ} {\mol}{ }^{-1}) is

AP EAPCET 15th May 2023 Shift 1 Solved Paper

Section: Chemistry

Question : 131 of 160

Marks: +1, -0

If the standard enthalpy change (∆rH⊖) for reaction H2(g)+Br2(l)→2‌HBr(g) is −72.8‌kJ, the standard enthalpy of formation (∆fH⊖) of HBr(g) (in kJ‌mol‌‌−1) is

−36.4
+36.4
−18.2
+18.2

Validate

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