Lesson_1.3_and_1.4_Homework

Lesson_1.3_and_1.4_Homework - Lessons 1.3 and 1.4 Homework...

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Lessons 1.3 and 1.4 Homework 1. An ideal gas expands isothermally performing 5.0 × 10 3 J of work. Calculate (i) the change in internal energy of the gas, (ii) the heat absorbed during this expansion. 2. 1.0 L of air initially at a pressure of 6.0 atm is allowed to expand isothermally until the pressure is 1.0 atm. It is then compressed at constant pressure to its initial volume and finally heated at constant volume to its initial pressure. Draw this process on a P-V diagram. 3. A gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at atmospheric pressure. When 6.0 × 10 6 J of heat is added to the gas, the volume is observed to increase slowly form 12.0 m 3 to 18.2 m 3 . Calculate (i) the work done by the gas, (ii) the change in internal energy of the gas. 4. The pressure of an ideal gas enclosed in a rigid container is reduced to one-half its initial value. In this process 1300 J of heat is removed from the gas. (i) What is the work done during this process? (ii) What
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Lesson_1.3_and_1.4_Homework - Lessons 1.3 and 1.4 Homework...

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