Reviewing Concepts
Answer the following true or false. Explain.
(a) The well-to-wheel efficiency compares different options for generating electricity used in industry, business, and the home.
(b) Exergy accounting allows the location, type, and true magnitudes of inefficiency and loss to be identified and quantified.
(c) Like entropy, exergy is produced by action of irreversibilities.
(d) At every state, exergy cannot be negative; yet exergy change between two states can be positive, negative, or zero.
(e) To define exergy, we think of two systems: a system of interest and an exergy reference environment.
(f) The specific flow exergy cannot be negative.
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