Answer:264.58 mm of Hg
Explanation:
Given
Volume of gas [tex]V_1=5\ mL[/tex]
Pressure [tex]P_1=127\ \text{mm of Hg}[/tex]
If the Plunger is pressed volume is reduced to
[tex]V_2=2.4\ mL[/tex]
As temperature of the gas does not change so it follows boyle's law
According to which
[tex]P_1V_1=P_2V_2[/tex]
[tex]127\times 5=P_2\times 2.4[/tex]
[tex]P_2=264.58\ \text{mm of Hg}[/tex]