Dynamic meteorology test 2 with correct answers /2027
Dynamic meteorology test 2 with correct answers /2027 Entropy ______ in an isolated system - Correct Answer never decreases in the 2nd law...energy remains conserved, but the ____ of the energy transformation is controlled - Correct Answer direction Kelvin-Planck Statement - Correct Answer you cannot convert a given amount of heat into an equal amount of work what is entropy - Correct Answer the amount of energy not available for work during a certain process. a measure of disorder or randomness of a system Heat, Q, is a - Correct Answer path dependent variable, therefore &Q is dependent on state entropy equation - Correct Answer dS=&Qrev/T Entropy is only defined for - Correct Answer equilibrium states The entire universe is a ____ system - Correct Answer isolated (and closed) Why is the entire universe considered an isolated system - Correct Answer Because there is no transfer of energy in the universe What kind of system is Earth? Why? - Correct Answer Closed system because energy enters and leaves, but material does not What kind of system is earth's atmosphere? Why? - Correct Answer Open system because energy and matter transfer with the surroundings Entropy is a ___ system and can never ____ - Correct Answer isolated, decrease In any irreversible process, the entropy of an isolated system will - Correct Answer increase The entropy of the universe is - Correct Answer continually increasing What is a heat engine? - Correct Answer takes heat from a hot reservoir, converts this heat into work, and deposits the remainder into a cold reservoir Example of a heat engine - Correct Answer extracting momentum from water for power production The greater the temperature diff
Written for
- Institution
- Meteorology
- Course
- Meteorology
Document information
- Uploaded on
- January 16, 2026
- Number of pages
- 7
- Written in
- 2025/2026
- Type
- Exam (elaborations)
- Contains
- Questions & answers
Subjects
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entropy in an isolated system never decreas
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what is entropy the amount of energy not available
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the entire universe is a system isolated and
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the entropy of the universe is continually increas
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