Zadanie 15
Wzorowane na: Chemistry SL Paper 1, May 2022, TZ1, pytanie 15. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
The potential energy profile of a reaction is shown.
Which statement correctly describes the reaction?
A. Endothermic; the products have a lower potential energy than the reactants
B. Endothermic; the products are less stable than the reactants
C. Exothermic; the products have a lower potential energy than the reactants
D. Exothermic; the products are less stable than the reactants
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
C ✔
«the products lie at a lower potential energy than the reactants, so energy is released to the surroundings and the reaction is exothermic; lower potential energy means the products are more stable than the reactants»
Schemat punktowania
One mark for the correct option.