How does the ideal gas law differ from the combined gas law?

Answer 1

The combined gas law describes states that #(PV)/T=k# is a constant for any fixed quantity of gas, but the ideal gas law extends this to say that the value of the constant is proportional to the number of moles of gas, #k=nR#.

Thus, the ideal gas law states that #(PV)/T=nR# where #R# is the universal gas constant, #R=8.314# J/(mol-K). Multiplying both sides by #T#, we can rewrite the ideal gas law in a more conventional form:

#PV=nRT#.

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Answer 2

Caleb Adams

The ideal gas law combines Boyle's, Charles's, and Avogadro's laws into a single equation, assuming ideal behavior. The combined gas law is a rearrangement of the ideal gas law, allowing for comparison of different states of a gas.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.