An ideal gas is allowed to expand slowly. The system is thermally isolated. Which statement regarding the final pressure is true?
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Which of the following statements best describes the general pattern of composition among the four jovian planets?
a. Jupiter is made mostly of hydrogen and helium, while the other three jovian planets are made mostly of hydrogen compounds. b. Jupiter is made mostly of hydrogen, Saturn is made mostly of helium, Uranus is made mostly of hydrogen compounds, and Neptune is made mostly of rock. c. Uranus and Neptune contain relatively more rock and hydrogen compounds than Jupiter and Saturn. d. All four planets have essentially the same composition.
The circuit below contains 5 identical light bulbs. The emf is 110 V. Which light bulb(s) is(are) brightest?
a.
A: The one closest to the positive terminal of the battery.
b.
A and C: The bulbs closest to the positive terminal of the battery.
c.
A and B: Because they are closest to the terminals of the battery.
d.
C and D: Because they receive current from A and B and from E.
e.
E: Because the potential difference across E is that of the battery.
Which of the following statements is true of Uranus?
A) It grows massive to capture large amounts of gas from the solar nebula. B) It has moons that are larger than Earth's moon. C) It has an orbital period of 15 years. D) It has a deep mantle of partly solid water.
One mole of an ideal gas at 1.00 atm and 0.00°C occupies 22.4 L. How many molecules of an ideal gas are in one cm3 under these conditions?
a. 28.9 c. 2.69 × 10^19 b. 22,400 d. 6.02 × 10^23