Nitrogen monoxide reacts with oxygen in a reversible reaction according to the equation shown below. 2NO(g) + O2(g) ⇌ 2NO2(g) The partial pressures of each of the components in an equilibrium mixture are shown in the table. partial pressure NO/kPa: 10, partial pressure O2/kPa: 30, partial pressure NO2/kPa: 20 What is the numerical value of the equilibrium constant, Kp, for this equilibrium?

Sulfur dioxide and oxygen react in the gas phase. 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) ∆H = –197 kJ mol⁻¹ Which statements are c…

The reaction between sulfur dioxide and oxygen is reversible. 2SO₂ + O₂ ⇌ 2SO₃ ΔH° = –196 kJ mol⁻¹ Which conditions o…

In which reactions does NH₃ behave as a Brønsted-Lowry acid? 1 2NH₃ → NH₂⁻ + NH₄⁺ 2 HSO₄⁻ + NH₃ → SO₄²⁻ + NH₄⁺ 3 Ag⁺ …

For the element sulfur, which pair of ionisation energies has the largest difference between them?

Which ion has both more electrons than protons and more protons than neutrons? [H = ¹H; D = ²H; O = ¹⁶O]

Which species contains the smallest number of electrons?