Upon landing, the 90.7 kg carbon fiber brakes of an airliner heat up 312∘c, producing heat. as the brakes start to cool back to their initial temperature, the heat is absorbed by the 123 kg rubber tires. assuming that all of the heat is transferred from the brakes to the tires, what is the specific heat of the tires if their temperature rises 172∘c? round your answer to two decimal places. use 1.400jg∘c for the specific heat of carbon fiber.

The specific heat of the tires is

Explanation: As all the heat is transferred from the carbon fiber brakes to the rubber tires, the heat lost by the carbon fiber brakes is equal to the heat gained by the rubber tires.

Q= heat gained  or lost

m= mass of the substance

c = heat capacity of substance    

Heat lost by the carbon fiber brakes = Heat gained by the rubber tires

Therefore, the specific heat of rubber tires to two decimal places is

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.