1.1. Solids, liquids and gases
A subsection of Chemistry, 5070, through 1. States of matter
Listing 10 of 30 questions
Chlorine is a gas at room temperature. Iodine is a solid at room temperature. A sample of chlorine has a volume of 240 cm3 at room temperature and pressure. The pressure of the sample is increased at room temperature. Describe and explain, in terms of kinetic particle theory, what happens to the volume of the sample. When heated at atmospheric pressure, iodine changes directly into a gas without becoming a liquid. Describe the changes in particle separation, arrangement and motion during this change. separation arrangement motion At the same temperature and pressure, the rate of diffusion of chlorine gas is greater than that of iodine gas. Explain why. The symbol of an iodide ion is shown. 53I– Complete Table 7.1 about this iodide ion. Table 7.1 particle number of particles electrons neutrons protons
5070_s24_qp_21
THEORY
2024
Paper 2, Variant 1
View
Oxygen is a gas at room temperature. Sulfur is a solid at room temperature. A sample of oxygen has a volume of 540 cm3 at room temperature and pressure. The temperature of the sample is increased but the pressure is unchanged. Describe and explain, in terms of kinetic particle theory, what happens to the volume of the sample. Sulfur is a gas above 445 °C. Describe the changes in particle separation, arrangement and motion when a sample of sulfur gas is cooled down to room temperature. separation arrangement motion Describe diffusion in terms of kinetic particle theory. The symbol of a sulfide ion is shown. 16S2– Complete Table 7.1 about this sulfide ion. Table 7.1 particle number of particles electrons neutrons protons
5070_s24_qp_22
THEORY
2024
Paper 2, Variant 2
View
Questions Discovered
30