# What are the variable of gases that we measure?

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The variables of gases that we measure include pressure, volume, temperature, and the amount of substance (usually expressed in moles). These variables are often interrelated and can be described by the ideal gas law equation.

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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.

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.

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.

- The average kinetic energy of the molecules of an ideal gas is directly proportional to what?
- Ammonia gas is synthesized according to the balanced equation below. N2 (g) + 3 H2 (g) → 2 NH3 (g) If 2.75 L N2 react with 7.75 L H2, what is the theoretical yield (in liters) of NH3?
- A sample of ideal gas has a volume of 325 L at 13.60*C and 1.60 atm. What is the volume of the gas at 23.60°C and .994 atm?
- If the volume of the gas in a gas chamber is 500 mL at 277 K, what will be the volume of the gas in the chamber if the temperature is at 300 K?
- The pressure of a sample of dry air is held constant at 2.25 atm while the temperature is decreased rom 100 °C to 7 °C. The original volume of the sample is 43 L. What is the final volume of the sample?

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