Editing Water vapour
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=== How water vapour works as a greenhouse gas? === | === How water vapour works as a greenhouse gas? === | ||
− | A greenhouse gas is a gas that has the properties to absorb and emit the energy from the electromagnetic radiation from the [[Sun]] and the re-radiated infrared energy from the surface of the planet. On Earth, the [[greenhouse effect]] happens due to the presence of the greenhouse gases like water vapour, [[carbon dioxide]], [[nitrous oxide]], [[methane]], and [[chlorofluorocarbon]]s. These gas molecules are loosely bound to each other, and they vibrate on absorbing the infrared radiation. They then emit the same radiation to reach their original bound state. As water [[molecule]]s have two [[hydrogen]] [[atom]]s bonded with an [[oxygen]] atom with a [[ | + | A greenhouse gas is a gas that has the properties to absorb and emit the energy from the electromagnetic radiation from the [[Sun]] and the re-radiated infrared energy from the surface of the planet. On Earth, the [[greenhouse effect]] happens due to the presence of the greenhouse gases like water vapour, [[carbon dioxide]], [[nitrous oxide]], [[methane]], and [[chlorofluorocarbon]]s. These gas molecules are loosely bound to each other, and they vibrate on absorbing the infrared radiation. They then emit the same radiation to reach their original bound state. As water [[molecule]]s have two [[hydrogen]] [[atom]]s bonded with an [[oxygen]] atom with a [[hydrogen bond]], the molecule is [[polarity|polar]] with two lone pair [[electron]]s. These lone pair electrons repel each other and form the popular 'bent' structure of water molecule, loosening the bonds. Thus the water molecule can vibrate and then emit infrared radiation. This makes water vapour a greenhouse gas. |