An adiabatic free expansion of a gas in a thermally isolated container is not reversible because
a. work must be done on the gas to return it to its original volume. b. heat must be exchanged with the surroundings to return the gas to its original temperature. c. its internal energy has a greater value after the expanded gas is returned to its original volume and temperature. d. of all of the above. e. of (a) and (b) above only.
A
You might also like to view...
Light of wavelength 519 nm passes through two slits. In the interference pattern on a screen 4.6 m away, adjacent bright fringes are separated by 5.2 mm in the general vicinity of the center of the pattern. What is the separation of the two slits?
What will be an ideal response?
The gravitational force in a molecular cloud depends on
A) density only. B) temperature only. C) density and temperature. D) composition. E) thermal pressure.
Two resistors having resistances of 5.0 ? and 9.0 ? are connected in parallel. A 4.0-? resistor is then connected in series with the parallel combination. An ideal 6.0-V battery is then connected across the series-parallel combination
What is the current through the 9.0-? resistor? A) 0.35 A B) 0.53 A C) 0.83 A D) 0.30 A E) 0.67 A
An object moving in simple harmonic motion has an amplitude of 0.020 m and a maximum acceleration of 20 m/s2 . What is the frequency of the system?
a. 0.40 Hz c. 10.1 Hz b. 5.0 Hz d. 32 Hz