Highest Heat of Combustion
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Which of the following molecules have the highest heat of combustion per CH2?
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Which of the following molecules have the highest heat of combustion per CH2?
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The technique of fractional distillation is most effective for:
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A radioactive substance A was placed in a lead-lined container and the radiation it emitted was allowed to pass through a small aperture in the container and below a positively charged plate. The path of the particle changed such that it angled up toward the plate. Which of the following could it be?
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The following reaction was carried out in a closed system:
N2(g) + O2(g) <--> 2NO(g)
Hrxn = -ve value
Which of the following will favor the production of NO?
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An amino acid in a medium with a pH value above its isoelectric point would have:
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Which of the following is NOT characteristic of hydrogen bonding?
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238U is radioactive. One of the intermediates in its decay is obtained via 3 alpha emissions, 2 beta emissions and 3 gamma emissions. What is the identity of this intermediate? (You may consult a Periodic Table)
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At a given temperature T in kelvin, the relationship between the three thermodynamic quantities including the change in Gibbs free energy (G), the change in enthalpy (H) and the change in entropy (S), can be expressed as follows:
The sublimation of carbon dioxide occurs quickly at room temperature. What might be predicted for the three thermodynamic quantities for the reverse reaction?
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Each of the following structures is a resonance form of the molecule shown below EXCEPT one. Which one is the EXCEPTION?
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Enzyme X creates peptide bonds between amino acids leucine and valine, as well as peptide bonds between leucine molecules and between valine molecules. If enzyme X catalyzed the production of leu2val2, how many different linear tetrapeptides would be possible?