Question

A researcher wants to investigate the relationship between pressure and temperature in carbon dioxide gas (CO2) by using a pressure sensor on an airtight flask.

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In Step 1 of the investigation, the student adds CO2 to the flask at 20℃.

Choice Steps Taken Expected Result Graph
A.
Step 2: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure.

Step 3: Repeat with different sizes of flasks to account for volume.

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B.
Step 2: Keep the volume of the flask constant.

Step 3: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure.

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C.
Step 2: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure.

Step 3: Repeat with different sizes of flasks to account for volume.

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D.
Step 2: Keep the volume of the flask constant.

Step 3: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure.

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Which steps should the student take next and what would be the expected results?

A.
Choice C

B.
Choice B

C.
Choice A

D.
Choice D

PLEASE GIVE ME THE CORRECT ANSWER. THANK YOU IN ADVANCE!!

Answer 1

Answer: Choice D

Step-by-step explanation:

What would happen next is that the pressure Inside the flask would increase according to Gay-Lussac's Law, which states that the proportion between pressure and Temperature are directly proportional, meaning if the temperature increases, so does the pressure.