Question

a sample of coal contains C = 75% ,H =5.2% , O= 12.1 % ,N= 4.5% and ash = 3.2% . calculate the minimum amount of air required for complete combustion of 1 kg coal ​

Answer 1

Answer:

e fossil fuels are coal, crude oil and natural gas. ... where C, H, O, S are the percentages of carbon, hydrogen, oxygen and ... Calculate the volume of air required for complete combustion

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Answer 2

Concept:-

It could look like a word or a number portrayal of the amount's math esteem. It could look like a word or a number that addresses the mathematical worth of the amount. It could resemble a word or a number that signifies the amount's mathematical worth.

Given:-

Given that "a sample of coal contains  $C = 75\%$ , $H =5.2\%$ , $O= 12.1 \%$ ,$N= 4.5\%$ and ash$= 3.2\%$."

Find:-

We need to find that "calculate the minimum amount of air required for complete combustion of $1$ kg coal."

Solution:-

$1$ kg of coal contains $C = 75\%$ , $H =5.2\%$ , $O= 12.1 \%$ ,$N= 4.5\%$ and ash$= 3.2\%$.

$1$ kg of coal$=$weight of $[C \times \frac{32}{12}+H \times \frac{16}{2}-O \times \frac{100}{23}]$

$=[750g \times \frac{32}{12}+52g \times \frac{16}{2}-121g \times \frac{100}{23}]\\=[2000g+416g-121g] \times \frac{100}{23}\\=[2.295g] \times \frac{100}{23}=9978g=9.978kg$

Hence, the minimum amount of air required for complete combustion of $1$ kg coal ​is $9.978$ kg.

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