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vfiekz [6]
3 years ago
7

2000 joules are required to heat 125 grams of an unknown substance from 10 c to 28 c. What is the specific heat of the substance

?

Chemistry
1 answer:
Delicious77 [7]3 years ago
3 0
Hello! Specific heat is the amount of energy required by known amount of substance to raise its temperature by one degree celsius. In our question it is given that 2000J energy when supplied to 125 g of unknown substance raised its temperature by 18 oC. So, The specific heat is calculated as follow;

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Answer :

Total carbons are in the structure = 13

Primary carbons are in the structure = 5

Secondary carbons are in the structure = 6

Tertiary carbons are in the structure = 1

Quaternary carbons are in the structure = 1

Explanation :

Primary carbon : It is a carbon atom that is bound to only 1 carbon atom.

Secondary carbon : It is a carbon atom that is bound to 2 carbon atom.

Tertiary carbon : It is a carbon atom that is bound to 3 carbon atom.

Quaternary carbon : It is a carbon atom that is bound to 4 carbon atom.

As we are given the name of compound is, 2,2-dimethyl-4-propyloctane.

In this compound, eight carbon are align in a straight line, two methyl group are attached at 2nd position of the carbon in main chain and a propyl group that is three membered carbon chain is attached at 4th position of the carbon in main chain.

The given compound skeletal structure is shown below.

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