Boling point of water

Answer 1

Kelvin is simply the temperature scale of Celsius, measured from absolute 0 instead of the freezing point of water.

On a Kelvin scale, the freezing point of water is at 278.15 Kelvin.

The boiling point of water being at 100 degrees Celsius, this means that in Kelvin it is 373.15.

You can work out Kelvin from Celsius by the equation [Kelvin] = [Celsius] + 278.15.

Answer 2

The boiling point of water at sea level, which is 1 atmosphere of pressure, is 100 degrees Celsius, or 212 degrees Fahrenheit. The boiling point decreases as the altitude increases because the atmospheric pressure is decreasing.

Answer 3

Methane

Methane is a chemical compound with the chemical formula CH4. It is the simplest alkane, and the principal component of natural gas. Methane's bond angles are 109.5 degrees. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane makes it an attractive fuel. However, because it is a gas at normal temperature and pressure, methane is difficult to transport from its source. In its natural gas form, it is generally transported in bulk by pipeline or LNG carriers; few countries transport it by truck.

Methane was discovered and isolated by Alessandro Volta between 1776 and 1778 when studying marsh gas from Lake Maggiore.

Methane is a relatively potent greenhouse gas. Compared with carbon dioxide, it has a high global warming potential of 72 (calculated over a period of 20 years) or 25 (for a time period of 100 years).[2] It has a net lifetime of about 10 years,[3] and is primarily removed by reaction with hydroxyl radicals in the atmosphere, producing carbon dioxide and water.

Methane also affects the degradation of the ozone layer.[4][5]

The abundance of methane in the Earth's atmosphere in 1998 was 1745 parts per billion (ppb), up from 700 ppb in 1750. By 2008, however, global methane levels, which had stayed mostly flat since 1998, had risen to 1,800 ppb.[6] By 2010, methane levels, at least in the Arctic, were measured at 1850 ppb, a level scientists described as being higher than at any time in the previous 400,000 years.[7] Historically, methane concentrations in the world's atmosphere have ranged between 300 and 400 ppb during glacial periods commonly known as ice ages, and between 600 to 700 ppb during the warm interglacial periods.

In addition, there is a large, but unknown, amount of methane in methane clathrates in the ocean floors. The Earth's crust contains huge amounts of methane. Large amounts of methane are produced anaerobically by methanogenesis. Other sources include mud volcanoes, which are connected with deep geological faults, landfill and livestock (primarily ruminants) from enteric fermentation.

Answer 4

At standard pressure, the boiling point of pure water is exactly 100 degrees Centigrade.
Water boils at 100 degrees Celsius

Answer 5

Water boils at 100 degree C ( 212 degree F ).