Zadanie 30
Wzorowane na: Chemistry HL Paper 1A, May 2026, TZ2, pytanie 30. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
The system A(g) + B(g) ⇌ 2 C(g) has an equilibrium constant K = 2.5 × 10−2.
What is correct about the direction of the spontaneous change when Q = 3.0? In each option the first part states which species are in excess and the second part the favoured process.
A. Reactants, to the right to form more products
B. Products, to the left to form more reactants
C. Reactants, to the left to form more reactants
D. Products, to the right to form more products
Sprawdź rozwiązanieUkryj rozwiązanieKlucz CKE i punktacja
Odpowiedź z klucza
B ✔
«Q > K, so the mixture contains more products (and less reactants) than at equilibrium; the reaction proceeds to the left, forming more reactants, until Q = K»
Schemat punktowania
One mark for the correct option; no partial credit.