A System That Does No Work but Which Receives Heat

question 56

Multiple Choice

A system that does no work but which receives heat from the surroundings has

• A) q < 0, ΔU > 0.
• B) q > 0, ΔU < 0.
• C) q = ΔU.
• D) q = -ΔU.
• E) w = ΔU.

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Definitions:

Enzymes

Biological catalysts that speed up chemical reactions in living organisms without being consumed in the process.

Abiotic Evolution

The process of environmental and geological changes over time, not influenced by biological factors.

Chemical Evolution

The process by which simple chemical compounds spontaneously formed more complex molecules over time, ultimately leading to the emergence of life from non-living matter.

Organic Evolution

The process of change and diversification of living organisms over time through mutations, natural selection, and genetic drift.