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16 Cards in this Set
- Front
- Back
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_____ is the branch of physics that deals with heat energy.
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thermodynamics
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Early scientists believed that heat was an invisible and weightless fluid called ___.
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caloric
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___ _____ came up with the idea that heat is a form of mechanical motion.
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Count Rumford
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__ _ ___ stated the first law of thermodynamics.
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Robert von Mayer
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The relationship between mechanical energy and heat energy is called the __ __ __ __.
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mechanical equivalent of heat
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__ __ ___ came up with the relationship between mechanical energy and heat.
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James Prescott Joule
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The law of thermodynamics is also known as the __ __ ___ __ ___.
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law of conservation of energy.
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What is the first law of thermodynamics?
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Energy is indestructible, but can be converted into other forms.
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The first law of thermodynamics states__________________.
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that the total amount of energy remains constant.
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__ ____ is known as the founder of the science of thermodynamics.
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Nicolas Carnot
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What did Carnot learn from the steam engine?
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That the mechanical work done in the steam engine is made possible by the transfer of heat from one body to another.
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Carnot and Clausius both came up with the important principle of what?
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That heat moves only one way - from a hot to cold.
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What is the second law of thermodynamics?
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That heat tends to go only one way, towards less usable energy and greater disorder.
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The amount of disorder in a system is called _____.
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entropy
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A special form of the 2nd law of thermodynamics states that for every action there is a ___ of useful energy and an ___ in disorder.
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loss of useful energy
an increase in disorder |
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How does the second law of thermodynamics prove the action of creation?
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Because natural processes work in only one direction, the universe is winding down. If it is winding down, there must have been a time it was created.
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