If a small piece of iron that has a temperature of 25°C is placed in a container of 1,000 g of water that has a temperature of 99°C, which of the following is likely to occur?
a. The iron will melt if the piece is small enough
b. The temperature of the water will increase to 100 C and start to boil
c. Some heat will be transferred from the water to the iron
d. The temperature of the iron will decrease
Answer: c. Some heat will be transferred from the water to the iron
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Which of the following occurs during the ice crystal process of rain formation?
A. The temperature in the cloud must be -40°C or below. B. Only ice crystals need be present in a cloud. C. The cloud must be cumuliform. D. Ice crystals grow larger at the expense of the surrounding liquid cloud droplets.
A self-amplifying reaction and a nuclear explosion in a nuclear power plant are prevented in large part by
A) the regular addition of uranium-239 to the fuel. B) control rods that absorb extra neutrons. C) the production of plutonium-239. D) fuel rods that absorb tremendous amounts of heat.
In the stratosphere, under natural conditions, ozone is formed and broken down by the action of
A) UVB radiation. B) free chlorine atoms. C) sulfur and carbon oxides. D) particulate matter less than 2.5 micrometers in diameter.
If shale is such a common rock in the sedimentary rock world, why isn't it as prominently exposed at the surface as sandstone?
What will be an ideal response?