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Question
The metamorphism of coal to anthracite occurs due toA) high pressure and high temperature.
B) high temperatures.
C) contact metamorphism.
D) crystallization of organic matter.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
A) degrees.
B) joules.
C) calories.
D) both joules and calories.
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When the temperature of a fixed volume of air initially at 0 C is lowered by 1 degree, its pressure
A) decreases by 1/273.
B) decreases by 100/273.
C) increases by 1/273.
D) increases by 100/273.
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Which of these is the smallest?
A) 1 Celsius degree
B) 1 kelvin
C) 1 Fahrenheit degree
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E) none of the above
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A) kinetic energy.
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If water had a lower specific heat capacity, would ponds and lakes be more or less likely to freeze in winter?
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Distinguish between the concepts of thermal energy, temperature, and heat.
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Water at 4C will expand when it is slightly
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B) warmed.
C) both of these
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If water at 0C slightly increases in temperature, the water
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If water at 20C slightly increases in temperature, the water
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The operation of a bimetallic strip relies on differences in
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A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is
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A) becomes more ordered.
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C) reaches equilibrium.
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When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Q:
Which law of thermodynamics addresses the direction of heat flow?
A) First law
B) Second law
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D) all of the above
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Which law of thermodynamics states that no system can reach absolute zero?
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Two objects move toward each other due to gravity. As the objects get closer and closer, the acceleration of each
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B) half as much.
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If Earth's mass somehow decreased with no change in its radius, your weight would
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B) increase.
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Q:
Newton discovered
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From Earth, one satellite appears to overtake another. The faster satellite that is seen to overtake the other is
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The fastest moving planet in a solar system is the
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