If 2.0 g of water at 0.00°C is to be vaporized, how much heat must be added to it? The specific heat of water is 1.0 cal/g ? K, its heat of fusion is 80 cal/g, and its heat of vaporization is 539 cal/g
A) 1100 cal
B) 1100 kcal
C) 1200 cal
D) 1300 cal
E) 1500 cal
Answer: D
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Two rods of the same length and diameter are made from different materials. The rods are to connect two regions of different temperature so that energy will transfer through the rods by heat. They can be connected in series, as in figure a, or in parallel, as in figure b. In which case is the rate of energy transfer by heat larger?
The concept of seafloor spreading states that
A) Earth is expanding. B) seafloor is created at mid-ocean ridges and destroyed at deep ocean trenches. C) sea level is rising. D) earthquakes occur underwater.
Almost all the meteors you see in the sky are produced by meteoroids that weigh _____
A) less than 0.1 grams B) less than 1 gram C) more than 10 grams D) more than 100 grams
The orbits of Population II stars and globular clusters are much like comets, rising high above the galactic plane with eccentric orbits
Indicate whether the statement is true or false