As a new firefighter you were given several old hydraulic manuals that were mimeographed from the 1920’s.

As a new firefighter you were given several old hydraulic manuals that were mimeographed from the 1920’s. Over the years the manuals were exposed to air at room temperature and gradually turned yellow and the pages became brittle. The rate at which any change takes place depends on the temperature. Is the higher the temperature, the more rapidly the chemical change?

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