Multiple choice

PV = k = constant, is a mathematical expression of

  1. Charle's Law

  2. Avagadro's Law

  3. Graham's Law of diffusion

  4. Boyle's Law
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D Correct answer
Explanation

Robert Boyle proposed this law , giving the relationship between pressure and volume of given mass of a gas at constant temperature. This law states that volume (V) of a given mass of gas is inversely proportional to the pressure (P) at constant temperature. Mathematically it can be expressed as, or PV = k = constant.  At a given temperature, when the pressure of the gas is changed from P1 to P2 the relation becomes P1 V1 = P2 V2 = constant where, V2 is the new volume of the gas. The product of volume and pressure for a given mass of a gas at constant temperature is constant.

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