Buying a gas barbecue can be more than a little complicated. You think you have worked out what you want, then you discover there are two types of LPG (Liqueified Petroleum Gas) â Butane and Propane.Not only that, but the gas bottles come with different sized valves.hat means that it is not possible to connect to a propane bottle using a butane regulator or vice versa. A clip-on propane regulator. Typical bottles sizes vary from 3.9 kg to 13 kg but note that those are the weights of the amount of gas in the bottles, not the total weight.
Water vapor is another greenhouse gas that keeps heat from the sun trapped in the Earthâs atmosphere and helps maintain a temperature at which life can flourish on our planet. However, deforestation also affects the amount of this in the air.
The water vapor in your breath is warmer than the outside air. The water vapor molecules transfer energy to the colder air. This makes the water vapor molecules move more slowly. Their attractions overcome their motion and they join together or condense to form liquid water. When gas molecules transfer their energy to something cooler, they slow down and their attractions cause them to bond to become a liquid. 2  Making water vapor colder increases the rate of condensation. 3  Increasing the concentration of water vapor in the air increases the rate of condensation.