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Home Concept Builders Gases and Gas Laws Pressure and Temperature Help Help 6

Pressure and Temperature - Questions 6 Help

The pressure of a sample of gas is dependent upon the Kelvin temperature of the gas. Increasing the Kelvin temperature increases the pressure. The two quantities are directly proportional to one another. A quadrupling of the Kelvin temperature will quadruple the pressure 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 volume and number of particles. Use the data table to answer the next two questions.
 
When the Kelvin temperature of the gas is quadruple (increased by a factor of four), the pressure of the gas becomes _____.
a. four times larger
b. eight times larger
c. sixteen times larger
d. one-fourth the size
e. one-eighth the size
f. one-sixteenth the size
g. Not possible to tell
 
Which pairs of trials demonstrate this relationship? Select all that apply.
a. 1 and 2
b. 1 and 3
c. 1 and 4
d. 1 and 5
e. 2 and 4
f. 2 and 5
g. 3 and 4
h. 3 and 5
 

In this question, you need to analyze a set of data to determine the effect that a quadrupling of Kelvin temperature has upon the pressure of a gas (held at a constant volume). The graphic below will provide some background to the topic. Study (and/or scan) the graphic and then return to the text that continues below the graphic.

Quadrupling Kelvin Temperature

When two quantities like pressure and Kelvin temperature are directly proportional , a quadrupling of one quantity leads to a quadrupling of the other quantity. So to determine the effect that this quadrupling has, you will have to look for two rows between which the temperature has been quadrupled. That is, one row's temperature must be four times another row's temperature. Inspect your data table and identify two such rows. Then you will notice that the pressure of the row with the highest temperature is four times the pressure of the row with the smallest temperature.

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