7. Gases
Chemistry Gas Laws: Combined Gas Law
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Now we have the combined gas law. The combined gas law was created from combining Boyle's law, Charles law, and Gay Lussac's law. We're gonna say it highlights the relationship between the variables of pressure, volume, and temperature. Remember, Boyle's law says that pressure is inversely proportional to volume. Charles' law says that volume is directly proportional to temperature, and gain lose x law says that pressure is directly proportional to temperature. If we take a look down here, we can figure out how the combined gas law was derived. So it comes from combining Boyle's law, Charles law, and Gay Lussac's law. If we look, we have pressure and volume as numerators. So volume here, numerator, pressure Charles' law and Gay Lussac's law have as their denominators, temperature. So that comes down here. So here we'd say that the combined gas law is p v over t equals some constant. So k here would be a constant. This here would represent our combined gas law. And if we're dealing with 2 sets of pressures, volumes, and temperature, then it can go further and say p 1voneovertone equalsp2v2overt2. So this is how the combined gas law can be derived from these earlier chemistry gas laws.
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