Answer
(a) 55 kJ
(b) 110 kJ
(c) 27.5 kJ
(d) 55 kJ
Work Step by Step
Based on the given data, we can write
Heat $=\frac{-55\,kJ}{1\,mol\,A}=\frac{-55\times2\,kJ}{2\,mol\,A}=\frac{-55\,kJ}{2\,mol\,B}=\frac{-27.5\,kJ}{1\,mol\,B }$
Negative sign indicates that the heat is emitted.
(a) When 1 mol A reacts completely, 55 kJ heat is emitted.
(b) When 2 mol A reacts completely, 110 kJ heat is emitted.
(c) When 1 mol B reacts completely, 27.5 kJ heat is emitted.
(d) When 2 mol B reacts completely, 55 kJ heat is emitted.
