What is meant by an ideal or perfect gas?
What will be an ideal response?
A substance or material which behaves according to the equation pV = mRT
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The sky is blue due to air molecules scattering sunlight in all directions
a. True b. False Indicate whether the statement is true or false
The piston of a cylinder containing a quantity of ideal gas is advanced so that the volume of the gas is decreased by one-half. A pressure gauge on the cylinder shows the pressure of the gas to have increased threefold in the process. By what factor does the temperature of the gas change?
Kinetic Energy: A 1.0-kg object moving in a certain direction has a kinetic energy of 2.0 J. It hits a wall and comes back with half its original speed. What is the kinetic energy of this object at this point?
A. 2.0 J B. 1.0 J C. 0.50 J D. 0.25 J E. 4.0 J
If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is
A) .2". B) .5". C) .02". D) .002". E) .005".