First Law of Thermodynamics: A cylinder contains 13 moles of an ideal gas at a temperature of 300 K. The gas is compressed at constant pressure until the final volume equal 0.70 times the initial volume. The molar heat capacity at constant volume of the gas is 24.0 J/mol ? K. What is the change in the internal (thermal) energy of the gas during this process? (R = 8.31 J/mol ? K)
A. -28 kJ
B. -38 kJ
C. 28 kJ
D. 38 kJ
E. -9.7 kJ
Answer: A
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A. 17 m B. 160 m C. 3.6 km D. 100 m E. 610 m
Answer the following statement(s) true (T) or false (F)
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A very dense 1500-kg point object (
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What is the cause for the slow movement of reference marks, such as the celestial poles and equator, to move across the sky?
a. precession b. evolution c. climate change d. continental drift e. angular revolution