Zadanie 2d
Deduce, using your answer to 2c(i), how the value of Kc changes when the temperature of the equilibrium mixture is increased.
Wczytuję zadania…
Zapisujemy na Twoim urządzeniu to, bez czego serwis nie działa, np. zalogowanie. Plików analitycznych użyjemy tylko za Twoją zgodą. Szczegóły w polityce prywatności.
Baza zadań
Wybierz umiejętność, rok lub poziom trudności. Każde zadanie ma klucz i schemat punktowania.
Pokazujemy tylko poziomy, dla których mamy zadania.
Znaleziono 1061 zadań
Deduce, using your answer to 2c(i), how the value of Kc changes when the temperature of the equilibrium mixture is increased.
The reaction is usually carried out at a high temperature in the presence of a catalyst. (i) On the axes provided, sketch the energy profile of the reaction for the uncatalysed and for the catalysed pathway, and show ΔH and the activation energies.…
Determine the oxidation state of iodine in the iodate ion, IO3−.
Calcium hydride, CaH2, is an ionic compound that forms a crystalline lattice of Ca2+ and H− ions. Deduce whether calcium hydride behaves as a Brønsted–Lowry acid or as a Brønsted–Lowry base, and justify your answer.
When 10.65 g of chlorine gas is passed over a metal M, 13.35 g of the compound MCl3 is formed and no reactant is left over. Which value is the relative atomic mass of M? A. 9 B. 18 C. 27 D. 133
Explain why there has been so much recent research into this process.
State the expression for Kc for this reaction.
Bond enthalpies give an estimate of the enthalpy change of a reaction. Assume that all species are gases. (i) Use bond enthalpies from section 12 of the data booklet to determine the standard enthalpy change, ΔH⊖, of the forward reaction. (ii)…
Using your answer to part 2c(i), deduce how the value of Kc changes when the temperature is raised.
The conversion of carbon dioxide to methanol is usually carried out over a catalyst containing copper and zinc oxide. (i) Sketch energy profiles for the forward reaction, with and without the catalyst, on the axes shown. Label ΔH and the two activation…