1. An ideal gas is confined to a container with adjustable volume. The pressure

Question

1. An ideal gas is confined to a container with adjustable volume. The pressure and mole number are constant. By what factor will volume change if absolute temperature goes up by a factor of five? 2. A 4.00L container holds half a mole of an ideal gas at a pressure of 25 atm. What is the gas temperature? (R 0.0821 (Ljatm/mol(k)) 3. Five moles of nitrogen gas are contained in an enclosed cylinder with a movable piston. If the molecular mass of nitrogen is 28, how many grams of nitrogen are present? 4. How many moles of air must escape from a 20.00m x 8.000m x 5.000m room when the temperature is raised from 0°C to 23.85°C? Assume the pressure remains unchanged at one atmosphere while the room is heated. 5. A 20.0 kg piece of aluminum ( specific heat 900 JIKg)CC)) is warmed so that its temperature increases by 10.0 C°. How much heat is transferred into it? p. 1

Explanation / Answer

1) Volume will change(increase) by a factor of five (5).

By Charle's Law, volume and temperature are directly proportional. So, as the temperature rises by a factor of 5, volume also increases by a factor of 5.

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