How does temperature affect the motion of atoms and molecules in an object?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

This is the substance(s) formed in a chemical reaction.