A 1.50-liter sample of dry air in a cylinder exerts a pressure of 3.00 atmospheres at a temperature of 25°C. Without changing the temperature, a piston is moved in the cylinder until the pressure in the cylinder is reduced to 1.00 atmospheres. The volume of the gas is _____.
Answer:
\(V_2=4.5 L\)
Explanation:
Hi, air can be considered as an ideal gas. If mantaining constant the temeperature, you can apply the Boyle-Mariotte formula:
\(P_1*V_1=P_2*V_2\)
In this case:
\(P_1=3 atm\)
\(V_1=1.5 L\)
\(P_2=1 atm\)
So:
\(V_2=\frac{P_1*V_1}{P_2}\)
\(V_2=\frac{3atm*1.5 L}{1atm}\)
\(V_2=4.5 L\)