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Home Concept Builders Gases and Gas Laws Volume and Temperature Help Help 9

Volume and Temperature - Questions 9 Help

The volume of a sample of gas is dependent upon the Kelvin temperature of the gas. Increasing the Kelvin temperature increases the volume. The two quantities are directly proportional to one another. The ratio of Volume/Temperature remains constant. As such, a quadrupling of the Kelvin temperature will quadruple the volume of the gas.

There are two questions in this Question Group. Each question is very similar to one another. The question below is one of the questions.
 

Version 1:
Observe the data table shown at the right for a sample of gas that has a constant pressure and number of particles. Use the data table predict the volume of the gas when it's temperature is 2000 K.
 
Volume at 2000 K: ___________

In this question, you need to analyze a set of data to determine the volume when the temperature is 2000 K. One way to do that is to use proportional reasoning. We'll explain that in a moment. But first, take some time to study (and/or scan) the graphic in order to gain familiarity with the volume-temperature relationship. Then continue to the text that continues below the graphic.

Reasoning Proportionally with Volume and Temperature

The temperature of 2000 K is four times the temperature of 500 K. And since four times the Kelvin temperature leads to four times the volume, we should be able to use this four times factor to find the answer. Trial 2 of the table has a temperature of 500 K. So the volume at 2000 K will be four times the volume of Trial 2. So your answer can quickly be found by multiplying the volume at 500 K by four.

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The Law of Reflection

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