Answer the following statement(s) true (T) or false (F)
1. In a given macropartition, the total entropy of a system comprised of two or more parts is always equal to the sum of the entropies of those parts.
1. TRUE
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A certain engine extracts 1300 J of heat from a hot temperature reservoir and discharges 700 J of heat to a cold temperature reservoir. What is the efficiency of this engine?
A) 46% B) 54% C) 86% D) 27% E) 13%
What is ?min for a monochromatic beam of light of wavelength 600 nm and an aperture diameter of 6.00 mm?
A) 100 × 10-6 rad B) 202 × 10-6 rad C) 122 × 10-6 rad D) 244 × 10-6 rad E) 236 × 10-6 rad
The ______________ of a compound is the sum of the atomic masses given in the formula of the compound
Fill in the blank(s) with correct word
Have astronomers ever seen a gas cloud that looks like it contains planetary systems that are in the process of forming?
A) Yes, there are many such clouds, including the Orion Nebula. B) Yes, but only the original cloud that formed our own solar system. C) Yes, but only in distant galaxies, not in our own Milky Way. D) No, there is no evidence that any interstellar clouds are currently giving birth to stars.