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Introduce the concept of a pure substance. Discuss the physics of phase-change processes. Illustrate the P-v, T-v, and P-T property diagrams and P-v-T surfaces of pure substances. Demonstrate the procedures for determining thermodynamic properties of pure substances from tables of property data. Describe the hypothetical substance “ideal gas ...
Matter: Matter is any substance which has mass and occupies space. All physical objects are composed of matter, in the form of atoms and molecules, which are in turn composed of protons, neutrons, and electrons. Energy: Comes in different forms - heat (thermal), light (radiant), mechanical, electrical, chemical, and nuclear energy.
2. Firstly, you must make sure that you study the terms and definitions provided for each topic. Theory always forms part of any test or examination, and you should ensure that you obtain full marks for ALL theory questions. Always be prepared to write a test on terms and definitions as soon as a topic is completed in class.
Feb 21, 2021 · An intrinsic property is inherent or innate to the sample, while an extrinsic property is not inherent to the sample. An intrinsic property remains the same regardless of the conditions under which it is measured. Its value depends on chemical composition and structure. The value of an extrinsic property may change, depending on conditions.
4. Physics uses a lot of formulas and equation. A very powerful tool in working out physics problems with these formulas and equations is Dimensional Analysis. The left side of a formula or equation must have the same dimensions as the right side in terms of the fundamental quantities of mass, length and time. 5.
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Mechanical energy = kinetic energy + gravitational potential energy. Work-energy theorem – The work done by a resultant force on an object is equal to the change in its kinetic energy. (W = F.s = 1⁄2 m.v2) The Law of Conservation of Mechanical Energy – The total mechanical energy of a system remains constant provided no external force acts.
Jan 17, 2019 · A chemical change produces a new substance, while a physical change alters the form of matter but not its chemical identity. Chemical Changes. A chemical change involves a chemical reaction to produce a new product. It is a change at the molecular level of matter. Chemical bonds between atoms break and then form to connect different atoms.
