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In liquid form, natural gas takes up an incredible 1/600th of the space that it would in gaseous state. |
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A typical pipeline may contain a pressure of about 65 atmospheres. The gas moves at about 24km/h. |
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The rotten egg odour we've come to associate with natural gas comes from the additive called mercaptan, a chemical that has a sulphur-like smell. |
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When natural gas is burned it produces mostly carbon dioxide and water vapour. These are the same substances emitted when we breathe. |
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Natural gas is usually measured in cubic feet (volume) or Btu (heat content, British Thermal Units). One Btu is approximately equal to the energy released in the burning of a kitchen match. One cubic foot of natural gas has about 1031 Btu. A candy bar has about 1000 Btu. |
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A home that uses natural gas for heating, water heating, clothes drying and cooking contributes less carbon dioxide to the atmosphere than an all-electric home whose power is generated at a coal-fired power plant. |
