12. how do real gases differ from ideal gases...
12. how do real gases differ from ideal gases under high pressure and low temperature - a. real gases behave exactly as predicted by the ideal gas law - b. real gases deviate from the ideal gas behavior - c. real gases do not exist - d. real gases always condense into liquids
Answer
# Explanation:
## Step1: Recall gas - law concepts
The ideal gas law ($PV = nRT$) is a simplified model. Real - gas behavior is more complex.
## Step2: Analyze real - gas behavior under conditions
Under high pressure and low temperature, the volume of gas molecules and the intermolecular forces cannot be ignored as in the ideal gas model. So, real gases deviate from ideal gas behavior.
## Step3: Evaluate each option
- Option A: Real gases do not behave exactly as predicted by the ideal gas law under high pressure and low temperature, so A is incorrect.
- Option B: This is correct as real gases deviate from ideal gas behavior under these conditions.
- Option C: Real gases do exist, so C is incorrect.
- Option D: Real gases do not always condense into liquids under high pressure and low temperature; it depends on the specific gas and conditions, so D is incorrect.
# Answer:
B. Real gases deviate from the ideal gas behavior