1.2. Diffusion
A subsection of Chemistry, 5070, through 1. States of matter
Listing 10 of 26 questions
Group VII includes the elements fluorine, chlorine, bromine and iodine. Chlorine is a green gas at room temperature and pressure. State the appearance of iodine at room temperature and pressure. Chlorine reacts with aqueous potassium iodide in a displacement reaction. Cl2+ 2I–2Cl –+ I2Explain, in terms of electrons, why chlorine is an oxidising agent in this reaction. State the oxidation number of iodine in I2. Describe what is observed during the displacement reaction. The rate of diffusion of fluorine gas is greater than that of chlorine gas under the same conditions of temperature and pressure. State what is meant by the term diffusion. Explain why the rate of diffusion of fluorine is greater than that of chlorine under the same conditions. The rate of diffusion of fluorine increases as the temperature increases. Suggest why using ideas about kinetic particle theory.
5070_s23_qp_22
THEORY
2023
Paper 2, Variant 2
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Questions Discovered
26