Chemical Engineering Basics
Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

0.95902777777778
1.2090277777778
0.37569444444444
0.70902777777778

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Chemical Engineering Basics
Maraging steels derive their strength from the following mechanism:

Fine dispersions of Fe₃ C nucleated on dislocations in austenite
A fine, highly dislocated and strong martensite
Fine dispersions of alloy carbides in a ferrite matrix
Fine dispersions of intermetallics of Fe, Ni, Ti etc

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