A cylinder contains 1.50 moles of an ideal monatomic gas that is initially at a temperature of 317 K. If the gas gains 2730 J of heat and performs 780 J of work, what is its final temperature? (R = 8.31 J/mol ? K)
A) 359 K
B) 421 K
C) 526 K
D) 687 K
E) 756 K
B
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During the hydrogen shell burning phase:
A) the star grows more luminous. B) the star becomes less luminous. C) helium is burning in the core. D) the core is expanding. E) hydrogen is burning in the central core.
What would you see on Earth if you were on the near side of the Moon during a solar eclipse?
What will be an ideal response?
When a constant and sustained upward force acts on a rocket, its acceleration increases mainly because
A) gravity becomes weaker with increased distance. B) the mass of the rocket decreases as fuel is burned. C) No way, for acceleration would be constant.
120 J of heat flows by thermal conduction from
to 
What is the change in entropy for this process?
A. 0.034 J/K B. 0.118 J/K C. 0.201 J/K D. 0.338 J/K