Def Specific. heat, Specific temp,Specific vol, Specific gravity ,Specific density?
Answer:
Specific heat is the heat added to or removed from 1gram (or 1 lb) of a substance to change its temperature by 1°C (or 1°F). Our usual example water SH = 4.184J/g/°C or 1 Btu/lb/°F.
Example: A Specific temperature is the temperature at which a substance will reach a specific point of its properties..
e.g.Boil, melt, vaporise or freeze at atmospheric pressure.
Again water, Boils and Vaporises/Condenses at 100°C (212°F), Freezes/re-melts at 0°C (32°F).
Specific volume is the space occupied by a unit mass of a substance at STP. And again.. Water.. 1,000kg occupies a volume of 1 m³, or 1kg = 1 litre, 1 gram = 1cc or 1 mL.
Specific Gravity is the ratio of the Density of a solid or liquid substance relative to the Density of an equal volume of water or, of a gas to the density of an equal volume dry air. (Also called the Relative Density R.D.) (S.G. and RD have no units).
The SG of water and air is 1.000. A substance less than SG of 1.0 is lighter than water or air, more than 1.0 is heavier.
Every substance has a Specific Density.
It is the Mass per unit volume of that particular substance as in. g/L, g/cc, kg/m³, lb/gal...etc.
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Specific heat or density are exemples of normalized measures of physical or chemical properties for materials. It is helpful to compare materials.
For exemple, specific strenght would be the stenght of the material divided its desity. Doing this will help find which material is the strongest for a same mass.
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