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What is the dissociation constant k of pure water?
The dissociation constant (Kw) of pure water is approximately 1 x 10^-14 at 25°C. This value represents the equilibrium constant for the autoionization of water into H+ and OH- ions.
For most conductors as their temperature increases their resistance?
The resistance of pure metallic conductors increases with temperature, because the resistivity of these conductors increase with temperature.
When the liquid as a constant boiling point is it pure or not pure?
All pure liquids, such as water, H20, have constant boiling points at certain atmospheric pressures, which is helpful in determining the identity of an unknown liquid. Some liquids have constant boiling points that are not pure, such as nail polish remover, or ethyl acetate. Since it is a mixture of more than one pure liquid, it is not a pure liquid itself, but if always mixed in the same ratios, will have a constant boiling point.
What is a pure substance classified as?
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.
How is the resistance of a metallic conductor affected by variation in temperature?
In general, pure metal conductors increase in resistance as their temperature increases. This is not necessarily true for alloys, as some alloys are manufactured to have an approximately constant resistance over a wide range of temperatures.
What is the best dielectric grease for electrical connections?
Pure anhydrous lanolin will stick the longest, petroleum jelly is really easy to come by.
Are there any pure forms of semi conductors other than germanium and silicon?
gaAs is semiconductor
What is ment by pure resistuve?
Pure resistance refers to a component in a circuit that only dissipates energy in the form of heat and does not store energy. It follows Ohm's Law (V = I * R) and its impedance (resistance) remains constant across different frequencies in an AC circuit. Examples include resistors and elements that behave similarly to resistors, such as long conductors.
What classifies a substance as a pure substance?
A pure substance is a substance that is constant throughout. Such as water, tin or sulfur.
What are non-conductors electricity?
wood, plastic, pure water (contains no minerals just H2O), rubber
What is the term used to describe the constant temperature at which a pure liquid changes to vapour?
Boiling point
What are materials that are bad conductors?
Insulating materials are. They include glass, plastic, ceramics, rubber, pure water, and others.
