Which laboratory observation would most support the kinetic theory's assumption that gas molecules have little attraction for one another?
a. A gas expands when the pressure on it is released.
b. A gas with a lower formula mass diffuses more rapidly than one with a higher formula mass.
c. A gas exerts the same pressure on each part of a container's wall.
d. A gas has mass.
a
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Double-Slit Interference: In a double-slit interference experiment you are asked to use laser light of different wavelengths and determine the separation between adjacent maxima. You observe that this separation is greatest when you illuminate the double slit with
A. blue light. B. green light. C. yellow light. D. red light. E. The separation is the same for all wavelengths.
What is the Q-value for the reaction where the products are 0.006 u less than the reactants? (1 u = 931.5 MeV/c2)
a. 11 MeV b. 22 MeV c. 3.9 MeV d. 5.6 MeV e. 8.4 MeV
The melting point of aluminum is 660°C, its latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900J/kg ? K. How much thermal energy must be added to 500 g of aluminum originally at 27°C to completely melt it?
A) 485 kJ B) 395 kJ C) 273 kJ D) 147 kJ E) 14 kJ
Some power plants extract energy from the warm ocean currents. A major disadvantage to these power plants is that
A. the amount of heat released to the environment is unacceptable. B. the cost of warm ocean water is quite high. C. the efficiency is quite low. D. there is no low temperature reservoir.