A 20.0-L pressure vessel holds 2.00 moles of oxygen at 30°C. What is the pressure inside the vessel?
A) 101 Pa
B) 101 kPa
C) 1.01 × 106 Pa
D) 2.52 × 106 Pa
E) 252 kPa
E
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The lowest-mass object that can initiate thermonuclear fusion of hydrogen has a mass of about
a. 1 solar masses. b. 80 solar masses. c. 8 solar masses. d. 0.08 solar masses. e. 0.001 solar masses.
A CD has a diameter of 12.0 cm. If the CD is rotating at a constant angular velocity of 20.0 radians per seconds, then the period of the rotational motion is
A. 0.143 s. B. 0.224 s. C. 0.314 s. D. 0.421 s. E. 0.558 s.
A uranium atom is 238 times as massive as a hydrogen atom. Compared with the diameter of a hydrogen atom, uranium's size is
A) slightly smaller. B) only slightly larger. C) is much larger, but less than 238 times as large.
You can use Spotify to embed or link to ______ media.
A. music B. photography C. video D. audio