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Ex. N01. IB Physics B4 (HL only) Thermodynamics.

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An ideal gas is enclosed in a cylinder fitted with a piston as shown below. The cylinder walls are thermally conducting. The gas is compressed isothermally by pushing the piston in slowly.
For this process, the thermal energy exchanged with the surroundings will be
For this process, the thermal energy exchanged with the surroundings will be