300cm\(^3\) of a gas has a pressure 400mmHg. If the pressure is reduced to 150mmHg....
CHEMISTRY
POST UTME UNICAL
300cm\(^3\) of a gas has a pressure 400mmHg. If the pressure is reduced to 150mmHg. Find its volume.
- A)700cm\(^3\)
- B)800cm\(^3\)
- C)350cm\(^3\)
- D)112.5cm\(^3\)
Correct Answer: B)800cm\(^3\)
Explanation
To answer this question, we need to use Boyle's Law. Boyle's Law states that the product of the pressure and volume of a given amount of gas is constant, as long as the temperature remains the same. Mathematically, this can be expressed as:
\(P_1V_1 = P_2V_2\)
Where \(P_1\) and \(V_1\) are the initial pressure and volume of the gas, and \(P_2\) and \(V_2\) are the final pressure and volume of the gas.
In this case, the initial pressure (\(P_1\)) is 400 mmHg, the initial volume (\(V_1\)) is 300 cm
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