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Anna [14]
3 years ago
15

The heat of combustion of butane , c4h10 , is 2874 kj/mol. what is the heat of combustion of butane, in kj per gram?(provide the

right sig. fig)
Chemistry
2 answers:
stealth61 [152]3 years ago
6 0

Answer : 49.45 kJ per gram.

Explanation:

Heat of combustion is the amount of heat released on complete combustion of 1 mole of substance.

Given :

Amount of heat released on combustion of butane = 2874 kJ/mol

According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

1 mole of C_4H_{10} weighs = 58.12 g

Thus we can say:

58.12 g of C_4H_{10} on combustion releases = 2874 kJ

Thus 1 g of C_4H_{10} on combustion releases =\frac{2874}{58.12}\times 1=49.45 kJ

Thus the heat of combustion of butane, in kJ per gram is 49.45.

yulyashka [42]3 years ago
5 0
The answer will be d i just took the test and got it correct

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