The two most abundant elements in the sun are
a. nitrogen and oxygen.
b. hydrogen and helium.
c. sulfur and iron.
d. carbon and hydrogen.
e. carbon and nitrogen.
B
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The temperature of a quantity of ideal gas in a sealed container is increased from 0°C to 273°C. What happens to the rms speed of the molecules of the gas as a result of this temperature increase?
a. It does not change since rms speed is independent of temperature. b. It increases but it less than doubles. c. It doubles. d. It quadruples.
The isobaric compressibility or thermal expansion for a material is
What is the air’s isobaric compressibility at 300K?
In crystalline metals and ceramics, elastic strain is due to the stretching or compression of _____________ bonds resulting from changes in the lattice parameter.
Fill in the blank(s) with the appropriate word(s).
The strong force is an attractive force between
A. Two protons. B. Two neutrons. C. A proton and a neutron. D. Both A and B. E. All of A-C.