An ideal gas with ? = 1.67 is initially at 0°C in a volume of 10.0 L at a pressure of 1.00 atm. It is then expanded adiabatically to a volume of 10.4 L. What is the final temperature of the gas?
A) -7.1°C
B) 2.5°C
C) -23°C
D) 68°C
E) -20°C
Answer: A
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Which of the following is not true of the special theory of relativity?
A) The special theory does not apply to situations that involve substantial acceleration or gravity; for that, you need the general theory of relativity. B) For low speeds, the theory predicts effects that are so small that they cannot be noticed without extremely precise, high-tech measurement. C) The theory is valid only at speeds close to the speed of light. D) The theory tells us that there is no such thing as absolute time or space, because measurements of time and space depend on your reference frame.
Which statement expresses Newton's first law of motion? a. An object with no force on acting on it continues at rest or moves in uniform motion in a straight line with constant velocity. b. An object with a force on it is accelerated in the direction of the force an amount inversely proportional to its mass and directly proportional to the size of the force. c. For every action, there is an
equal and opposite reaction. d. The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them squared. e. The force between two objects is inversely proportional to the product of their masses and directly proportional to the distance between them squared.
The force of gravity is an inverse square law. This means that, if you double the distance between two large masses, the gravitational force between them
A) also doubles. B) strengthens by a factor of 4. C) weakens by a factor of 4. D) weakens by a factor of 2. E) is unaffected.
How many electrons does it take to fill the d subshell?
A) 10 B) 6 C) 14 D) 2 E) 4 F) 8