Which of the following best describes how the enthalpy change of a thermochemical…
CHEMISTRY · Single correct · A Level · Chemistry · Energetics · Energetics
Problem
Which of the following best describes how the enthalpy change ΔH of a thermochemical equation is affected if every stoichiometric coefficient in the equation is multiplied by 21?
(a) ΔH remains unchanged.
(b) ΔH is multiplied by 2.
(c) ΔH is multiplied by 21.
(d) The sign of ΔH changes, but the magnitude stays the same.