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How does the change in concentration of reactants affect the reaction rate in a first-order reaction? Provide experimental evidence to support your answer.
answered
Feb 13
in
Chemical kinetics
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71
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Calculate the enthalpy of polymerization of ethylene from the following data: Ethylene, C2H4(g) polymerizes to form polyethylene, (C2H4)n(s) with ΔHrxn = -44.0 kJ/mol at 298 K. Additionally, it is known that the standard enthalpies of formation of C2H4(g) and polyethylene (C2H4)n(s) are 52.3 kJ/mol and -128.2 kJ/mol, respectively. Assuming the enthalpy of polymerization is independent of temperature, calculate ΔHºp for the reaction.
answered
Jan 23
in
ThermoChemistry
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Red blood cells, white blood cells, and platelets are all produced where?
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Dec 31, 2024
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Science
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Precipitation maps show the amount of what in different areas?
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Dec 31, 2024
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Science
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