|MadSci Network: Biochemistry|
Good Morning, Jeff I'm sorry about the delay, I was out of town for a few days. As to building a bomb calorimeter: The operative word here is "bomb", because this device is used to combust samples in an atmospere of oxygen and the heat effect is measured by temperature rise in a known volume of water in which the bomb is immersed. Depending on the sample size and heat of combustion of the sample, there can be quite a large transient rise in pressure in the vessel and it must be constructed accordingly. Don't fool around with this! Commercial devices are well engineered and have a large safety factor, but the nitty gritty of this is that the determination involves a bomb and that's what it can be. JRD McCormick
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