Question

For which of the following reactions is AHequal to AH of the product(s)?You do not need to look up any values to answer this question. IXn Check all that apply. View Available Hint(s) CO(g)02(g)CO2(g) C(s, graphite) O2 (g)CO2 (g) BaCO3(s) Ba0(s) +CO2(g) Li(s)Cl2()LiCl(s) Li(s)Cl2(g)LICI(s) 2Li (s)Cl2 (g)2L1C1(s)

Answer 1

The standard enthalpy of formation ( ΔH_f^o ) is defined as the change in enthalpy when one mole of a substance is formed from its pure elements under STP. If all elements at both sides are in standard state then ΔH_f^o = ΔH^o_rxn

Strike out Cl₂(l), 2 mol product 2LiCl, decomposition of BaCO₃ (its not formation reaction), CO(g) is not elemental state.

For which of the following reactions is AHequal to AH of the product(s)?You do not need to look up any values to answer this question. IXn Check all that apply. View Available Hint(s) CO(g)+402(g)>CO2(g) C(s, graphite)02 (g)>CO2 (g) BaCOs(s)+BaO(s)+COz{g} Li(s)+C LiCI(s) Li(s)+Cl2 (g)LiCl(s) 2Li(s)+ Ch{s}+2LiCs}

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