Physics
JAMB 2017
The volume of a fixed mass of gas is 10cm
3 when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg.
-
A.
30cm3
-
B.
40cm3
-
C.
50cm3
-
D.
20cm3
Correct Answer: Option D
Explanation
Using boyle's law
P
1V
1 = P
2V
2
V
2 = \(\frac{P_1 V_1}{200}\) = \(\frac{400 \times 10}{200}\)
= 20cm
3
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