Gas sample contained in a cylinder equipped with a moveable piston occupied 300.0 ml at a pressure of 2.00atm. what would be the final pressure if the volume were increased to 500.00 ml at a constant temperature?

The final pressure of the gas sample at constant temperature is 1.20 atm.

Explanation:

Boyle's Law : Volume occupied by fixed amount of gas at a given temperature is inversely proportional to pressure .(moles, temperature are constant )

on transposing ,

PV = constant

............(1)

Initial pressure = P1 = 2.00 atm

Final pressure = P2 = ?

Initial volume = V1 = 300.0 mL

Final volume = V2 = 500.0 mL

Putting values of P1 ,V1, V2 in equation (1) and solving for P2

P2 = 1.20 atm  at constant temperature

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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