In a vertical cylinder closed at both ends there is a massive piston, on both sides of which there is one mole of air at the same temperature. The ratio of the upper volume to the lower one is n=4.0. What will the volume ratio be if the total volume occupied by the gas is reduced by k = 2.0 times, and the quantity and temperature of the gas, as well as the mass and dimensions of the piston, are left unchanged. The friction of the piston against the cylinder wall is negligible.
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