Answer:
3.7 atm i.e., pressure doubles
Explanation:
P₁ = Initial pressure = 1.85 atm
P₂ = Final pressure
V₁ = Initial volume = 12.5 L
V₂ = Final volume = 0.5V₁
T = Temperature is constant
From ideal gas law
P₁V₁ = P₂V₂
[tex]\\\Rightarrow P_2=P_1\frac{V_1}{V_2}\\\Rightarrow P_2=1.85\frac{V_1}{0.5V_1}\\\Rightarrow P_2=1.85\frac{1}{0.5}\\\Rightarrow P_2=1.85\times 2\\\Rightarrow P_2=3.7\ atm[/tex]
∴ Final pressure is 3.7 atm i.e., pressure doubles