At divergent boundaries the dominant rock type is
A) basalt.
B) granite.
C) andesite.
D) basalt, granite, and andesite.
Answer: A
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Energy Levels: What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 4 jumps to the final state n = 2? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 243 nm B. 486 nm C. 556 nm D. 312 nm E. 609 nm
Thin Films: When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its frequency
A. increases by a factor of 3/2. B. is reduced to 2/3 its original value. C. is unaffected.
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What will be an ideal response?
A fixed amount of ideal gas goes through a process abc. In state a, the temperature of the gas is 152°C, its pressure is 1.25 atm, and it occupies a volume of 0.250 m3
It then undergoes an isothermal expansion to state b that doubles its volume, followed by an isobaric compression back to its original volume at state c. (Hint: First show this process on a pV diagram.) The ideal gas constant is 8.314 J/mol ? K, and 1.00 atm = 1.01 × 105 Pa. (a) How many moles does this gas contain? (b) What is the change in the internal energy of the gas between states a and b? (c) What is the net work done on (or by) this gas during the entire process? (d) What is the temperature of the gas in state c?