Some hydrogen gas is enclosed within a chamber being held at 200^\ { C} with a volume of 0.025 \rm m^3. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50 \times 10^6 \; \rm Pa (14.8 \rm atm). The piston is slowly extracted until the pressure in the gas falls to 0.950 \times 10^6 \; \rm Pa. What is the final volume V_2 of the container? Assume that no gas escapes and that the temperature remains at 200^ { C}.