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Population density (people per km 2) by country. This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.
Example 1: If a block of solid stone weighs 3 kilograms on dry land and 2 kilogram when immersed in a tub of water, then it has displaced 1 kilogram of water. Since 1 liter of water weighs 1 kilogram (at 4 °C), it follows that the volume of the block is 1 liter and the density (mass/volume) of the stone is 3 kilograms/liter.
However, if only the Earth's land area of 150,000,000 km 2 (58,000,000 sq mi) is taken into account, then human population density is 53/km 2 (140/sq mi). This includes all continental and island land area, including Antarctica. However, if Antarctica is excluded, then population density rises to over 58 per square kilometre (150/sq mi). [1]
log e (P i) = −5504.4088 T −1 − 3.5704628 − 1.7337458×10 −2 T + 6.5204209×10 −6 T 2 + 6.1295027 log e (T) For temperature range: 173.15 K to 273.15 K or equivalently −100 °C to 0 °C At triple point. An important basic value, which is not registered in the table, is the saturated vapor pressure at the triple point of water. The ...
To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative density" or "specific gravity", i.e. the ratio of the density of the material to that of a standard material, usually water. Thus a relative density less than one relative to water means that the substance ...
This is an extended version of the energy density table from the main Energy density page: ... 2.5: Water 220.64 bar, 373.8 °C [citation needed] [clarification needed]
Therefore, the worldwide human population density is 8 billion ÷ 510 million km 2 (197 million sq mi) = 15.7 people/km 2 (41 people/sq mi). If only the Earth's land area of 150 million km 2 (58 million sq mi) is taken into account, then human population density increases to 53.3 people/km 2 (138 people/sq mi).
Where w s is the mean source width, ρ w is the density of water, R 0 is the average precipitation rate, W* is the width of the channel head, ρ s is the saturated bulk density of the soil, K z is the vertical saturated hydraulic conductivity, θ is the slope at the channel head, and φ is the soil angle of internal friction.