A) Pressure decreases disproportionately
B) Pressure remains the same
C) Pressure decreases proportionately
D) Pressure also increases proportionately
Correct Answer: C
Solution :
Boyles law states that at constant temperature for a fixed mass, the absolute pressure and the volume of a gas are inversely proportional. The law can also be stated in a slightly different manner, that the product of absolute pressure and volume is always constant. Thus, according to Boyles law, if volume of lungs is increased, die pressure decreases proportionately.
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