What is the approximate temperature of the Sun's core?
A) 5800 K
B) 10,000 K
C) 1 million K
D) 15 million K
E) 150 million K
D) 15 million K
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Which of the following statements is(are) correct when an ideal gas goes from an initial to a final state in a single process?
a. No work is done on or by the gas when the volume remains constant. b. No energy is transferred into or out of the gas as heat transfer when the temperature remains constant. c. The internal energy of the gas does not change when the pressure remains constant. d. All the statements above are correct. e. Only statements (a) and (b) above are correct.
A hydrogen atom is in its n = 2 excited state when its electron absorbs a photon of energy 8.5 eV. What is the energy of the resulting free electron?
The lowest level energy state of hydrogen is -13.6 eV. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 5.1 eV B) 6.6 eV C) 6.9 eV D) 7.6 eV
Subsurface soil that remains permanently frozen is called
a. a swamp. b. a bogg. c. permafrost. d. none of these.
The concept that atoms tend to get eight electrons in their outer shell when forming molecules or ions is called the ______________
Fill in the blank(s) with correct word