1.The pressures P and volumes V of five ideal gases, with the same number of molecules, are given below. Which has the highest temperature?a. P = 1 × 105 Pa and V = 10cm3b. P = 3 × 105 Pa and V = 6cm3c. P = 4 × 105 Pa and V = 4cm3d. P = 6 × 105 Pa and V = 2cm3e. P = 8 × 105 Pa and V = 2cm32.An adiabatic process for an ideal gas is represented on a p-V diagram by:a. a horizontal lineb. a vertical linec. a hyperbolad. a circlee. none of these3.The temperature of low pressure hydrogen is reduced from 100°C to 20°C. The rms speed of its molecules decreases by approximately:a. 80%b. 89%c. 46%d. 21%e. 11%4.Which, of the following temperature changes, would show the smallest change in entropy for a pan of water on a hot plate?1. 20°C to 30°C2. 30°C to 40°C3. 40°C to 45°C4. 80°C to 85°Ca. 1b. 1 and 2 are tied for smallest ?Sc. 2d. 3e. 4
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