Question

A gas occupies a volume of 4.2 dm³ at 101 kPa pressure. What volume will gas occupy if the pressure is increased to 235 kPa keeping the temperature constant?

Options

• 1.8 dm³

• 0.9 dm³

• 3.6 dm³

• 2.1 dm³

Answer 1

1.8 dm³ 

Explanation:

`"P" prop 1/"V"`  (T - constant)

`"P"_1/"P"_2 = "V"_2/"V"_1`

`(101  "kPa")/(235  "kPa") = "V"_2/(4.2  "dm"^3)`

`"V"_2 = (101 xx 4.2)/235` = 1.8 dm³