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The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring, Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10°m? The initial pressure, volume, and temperature of the gas are, respectively. P. V. - 6.00 104 m and To = 273 K, and the spring is initially stretched by an amount Xo = 0.085 m with respect to its unstrained length. The gas is heated, so that its final pressure, volume, and temperature are Pr. Vi and T and the spring is stretched by an amount - 0.12 m with respect to its unstrained length. What is the final temperature of the gas? -Piston T-