A-LevelPhysicsThermodynamicsOct/Nov 2018Paper 4 Q29 Marks
An ideal gas undergoes a cycle of changes as shown in [Figure 2.1]. At point P, the gas has volume 950 cm³, pressure 2.10 × 10⁵ Pa and temperature 280 K. The gas is heated at constant volume and 97.0 J of thermal energy is transferred to the gas. Its pressure and temperature change so that the gas is at point Q on Fig. 2.1. The gas then undergoes the change from point Q to point R and then from point R back to point P, as shown on Fig. 2.1.
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