4. 6. 7. 8. There is a move to redefine the mole in terms of. a. Avogadro's number b. Boltzmann constant Which storage device has the greatest storage capacity? 16 Gbyte 16 kbyte Uncontrolled changes in air pressure while determining the boiling point of a liquid give rise to a. b. a. b. C. d. height radius C. d. C. d. a. personal error b. random error A density of 5400 kg/m³ is equal to a. 5.4 540 b. 54 5400 The radius and height of a cylinder were determined using the same measuring instrument. When the volume of the cylinder is computed, which will likely contribute a greater error? (volume of a cylinder = Tr²b) Planck's constant speed of light in a vacuum C. d. 16 Mbyte 16 Tbyte C. d. relative error systematic error g/cm³. π both height and radius
Latent heat and phase change
A physical process in which a conversion among the basic states or phases of matter, i.e., solid, liquid, and gas takes place under the effect of a certain temperature and pressure is referred to as a phase change. Generally, the phase change of a substance occurs when heat transfer takes place between the substance and its surroundings. Based on the direction in which heat transfer takes place, different types of phase changes can occur.
Triple Point of Water
The branch of physics in which observer deals with temperature related properties is called thermodynamics.
Boiling Point of Water
Everyday examples of boiling is, boiling milk, heating water. One would have observed that when we heat water it goes through various stages and at one point bubbles show in water, and water keeps splashing with bubbles bursting, we in layman terms say that water is boiling.
Freezing Point of Water
In general, the freezing point of water is 0° Celsius, or 32° Fahrenheit. This is the temperature at which water will ordinarily change from its liquid state to its solid state (ice). However, there are certain conditions that can affect the freezing point of water. For example, a liquid may be supercooled or contain impurities so that it does not freeze at the ordinary freezing point.
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