Question

100 mL of gas is collected at 750mm
pressure. What volume will it occupy at
745 mm pressure? (in ml)​

Answer 1

Answer:

P2=101 ml

Explanation:

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Answer 2

Given - Initial pressure - 750 mm

Initial Volume - 100 mL

Final pressure - 745 mm

Find - Final volume of gas

Solution - According to Boyle's Law, pressure of an ideal gas is inversely proportional to it's volume at constant temperature.

The law can be mathematically represented as -

P1V1 = P2V2.

In the formula, P1 represents initial pressure, V1 represents initial volume, P2 represents final pressure and V2 represents final volume.

Keeping the values in equation-

750*100 = 745*V2

V2 = 100.67 ml.

Hence, fin volume of gas will be - 100.67 ml.