The Boyle's Law and Charles' Law equations can be combined to make the following equation:

R = Molar Gas Constant

This equation represents the Ideal Gas Law. An Ideal Gas is defined as a gas that obeys Boyle's Law and Charles' Law over all pressures and temperatures. Real gases do not conform entirely to these laws but for practicable purposes they can be assumed to do so.

The next subject will examine the actual pressure and temperature parameters that are measured in an air data system. But before we begin the next page contains a few revision questions from the subject you have just completed.

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The Atmosphere Revision

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