Question

According to Andrews isothermals, the minimum temperature at which carbon dioxide gas obeys Boyle’s law is

• A. 32.5°C
• B. 31.1°C
• C. 48.1°C
• D. 35.5°C

Hint:

At temperatures below 48.1°C, carbon dioxide does not obey Boyle’s law due to non-ideal gas behavior.

Answer 1

The Correct Option is C

Step 1: Understanding the behavior of carbon dioxide (CO\(_2\)).
According to the Andrews isotherms, the temperature at which carbon dioxide gas behaves ideally and obeys Boyle’s law (i.e., shows a linear relationship between pressure and volume) is 48.1°C. Below this temperature, CO\(_2\) exhibits non-ideal behavior, showing deviations from Boyle’s law.

Step 2: Conclusion.
The minimum temperature at which CO\(_2\) gas obeys Boyle’s law is (C) 48.1°C.