An ideal gas undergoes an isothermal expansion. During this process, its entropy
A) decreases.
B) remains unchanged.
C) increases.
D) cannot be predicted from the data given.
C
You might also like to view...
Why is it believed that the rings of Saturn could not have formed just as the planet itself formed?
a. Over time the solar wind should have blown away the particles in the rings. b. The particles in the rings should fall into the planet in a short period of time. c. The rings are made of ice particles which would have been vaporized by the heat released as Saturn formed. d. The outer planets do not have enough mass to hold on to the rings.
Force on a Moving Charge: An electron moving along the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, then the magnetic field must have a component
A. along the +z-axis B. along the -z-axis C. along the -x-axis D. along the +y-axis E. along the -y-axis
When a hologram is illuminated with a beam of coherent light, it produces
A) both a real and a virtual image. B) only a real image of the object. C) only a virtual image of the object.
A solenoid 4.0 cm in radius and 4.0 m in length has 8000 uniformly spaced turns and carries a current of 5.0 A. Consider a plane circular surface (radius = 2.0 cm) located at the center of the solenoid with its axis coincident with the axis of the solenoid. What is the magnetic flux through this surface? (1 Wb = 1 T / m2)
a. 63 ?Wb b. 16 ?Wb c. 0.25 mWb d. 10 ?Wb e. 5.0 ?Wb