Which outcome occurs when heat exposure compromises a refrigeration system's oil?

💡 Explanation

Compressor valve plate carbonization occurs because increased temperatures cause oil breakdown depositing hard carbon; the mechanism is oil coking under thermal stress. Therefore, valve function degrades, leading to decreased compressor efficiency, rather than optimized operation as heat stress accelerates reactions.

• What type of corrosion occurs when chloride ions compromise the passivation layer on rebar?
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