MadSci Network: Chemistry |
Very simply, yes. Many will react with oxygen and cause that "pop". The pop that you hear is caused by the rapid reaction between hygrogen gas and oxygen in the atmosphere to form a more stable molecule, water. The reaction is so rapid and violent that you hear the expansion of the gases as they react. It is actually a miniature sonic boom. The expansion of the gases, as they react, exceed the speed of sound and you hear the "pop". The reaction is simple: 2H2 + O2 -------> 2H2O Other gases such as acetylene, methane, ethane, propane, to name a few, will react with oxygen to form more stable products. For example, methane reacts with oxygen to form carbon dioxide and water: CH4 + 2O2 ------> CO2 +2H2O The reaction that you describe is on a very small scale. Extreme care should be taken whenever dealing with potentially explosive combinations of gases. It may be of interest to you to know that most explosions, ie TNT, nitroglycerine etc. are simply rapid expansion of materials to a gaseous state.
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