Учебное пособие Казань-2016 Сайфуллина М. Н., Хабирова Н. М. English for Physicists
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Posobie dlya fizikov Habirova Sajfullina ispravv
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Checking your understanding I. Review questions: 1) What are three phases of matter? 2) How can matter change from one phase to the other? 3) What is there between particles of matter? 4) When does the spacing between atoms or molecules increase? 5) What is matter made up of? 6) What do all particles have? 7) Why is liquid water able to flow? 8) When may a change in phase occur? 9) The kinetic theory of matter is also illustrated by the process of diffusion. Prove it. II. Complete the sentences. 1. Intermolecular forces are … 2. Diffusion is … 3. The kinetic molecular theory of matter states that… 4. If the ice is heated … 5. The liquid water will become water vapor, if … 6. The liquid water is able to flow, because … 7. If matter were not made of particles, … 8. The temperature of a substance is… III. Are these sentences true or false? 1. The kinetic molecular theory of matter states that matter is made up of particles that are constantly moving. 2. All particles have energy, but the energy varies depending on the temperature the sample of matter is in. 37 3. Molecules in the solid phase have the greatest amount of energy, while gas particles have the least amount of energy. 4. The average amount of empty space between molecules gets progressively smaller as a sample of matter moves from the solid to the liquid and gas phases. 5. If the molecules are heated further, the liquid water will become in its solid phase (ice). 6. Diffusion is the movement of particles from a high concentration to a low concentration жүктеу/скачать 1,1 Mb. Достарыңызбен бөлісу:
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