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what is volume expansion liquid. Water has its highest density and smallest volume at 4oC 392 oF. Increase in volume per unit original volume per Kelvin rise in temperature is called coefficient of volumetric expansion.
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When the liquid gets heated it expands more beyond its original level. Measuring exactly how much a liquid expands with a given rise in temperature is not a completely straight forward operation. The expansion of alcohol in a thermometer is one of many commonly encountered examples of thermal expansion the change in size or volume of a given mass with temperature.
If equal volumes of a liquid a solid and a gas are heated through the same rise in temperature it is generally found that the liquid expands more than the solid but less than the gas.
Linear expansion is the change in length due to heat. The liquid-to-gas expansion ratio of nitrogen is 1694 which means liquid nitrogen boils to fill a volume with nitrogen gas very quickly. It compares the space of the occupied when it is measured at different temperatures keeping other physical quantities like pressure at a constant value. And the temperature difference T 2 T 1 is assumed to be small.
