A gas at atm occupies L. At constant temperature, what is its pressure (in atm) when the volume is compressed to L?
Answer and explanation
Correct answer: B. 24
- Step 1: For an ideal gas at constant temperature (isothermal process), Boyle's law states that pressure and volume are inversely proportional: .
- Step 2: Rearrange the relation to solve for the final pressure: .
- Step 3: Substitute , , and : .
Answer
24.
Why not the others: 48 is the product without dividing by ; 3/2 inverts the Boyle's law ratio (); 12 divides by 4 instead of 2.
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