Assume a gas is at a constant temperature. If its initial pressure, final pressure, and initial volume are 150 kPa, 200 kPa, and

Question

3 years ago

15

25 cm3, respectively, what is its final volume?
A.
20 cm3

B.
25 cm3

C.
33.33 cm3

D.
18.75 cm3

E.
22.5 cm3

1 answer:

Vlad1618 [11] · Answer 1 · 2022-04-20T02:16:24+03:00

Answer:

Option D. 18.75 cm3

Step-by-step explanation:

we know that

The Boyle's law (Ideal gas law) states that Where temperature remains constant, the pressure is inversely proportional to volume.

so

$P1 *V1 = P2 *V2$

In this problem we have

P1=150 kPa

P2=200 kPa

V1=25 cm³

substitute and solve for V2

$(150)(25)= 200*V2$

$V2=(150)(25)/200=18.75\ cm^{3}$