Pick out the wrong statement_________________?
Correct answer: D. Heat and work are both state function
- A. Phase rule variables are intensive properties
- B. CP and CV are state function
- C. The work done by expansion of a gas in vacuum is zero
- D. Heat and work are both state function
Explanation
Heat and work are path functions, not state functions, because their values depend on how a process occurs. The other statements are valid: free expansion into a vacuum does no work, and CP and CV are thermodynamic properties.
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