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TiliK225 [7]
3 years ago
12

A sample of CO2 has a volume of 6.08 cm3 at 2.0 atm. At what pressure would this sample of gas have a volume of 42.0 cm?

Chemistry
1 answer:
saul85 [17]3 years ago
3 0
C 0.289 why but because of decimals i’m gonna go with that one
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The activation energy for proline isomerization of a peptide depends on the identity of the preceding residue and obeys Arrheniu
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Answer:

Activation energy of phenylalanine-proline peptide is 66 kJ/mol.

Explanation:

According to Arrhenius equation-     k=Ae^{\frac{-E_{a}}{RT}}    , where k is rate constant, A is pre-exponential factor, E_{a} is activation energy, R is gas constant and T is temperature in kelvin scale.

As A is identical for both peptide therefore-

                                   \frac{k_{ala-pro}}{k_{phe-pro}}=e^\frac{[E_{a}^{phe-pro}-E_{a}^{ala-pro}]}{RT}

Here \frac{k_{ala-pro}}{k_{phe-pro}}=\frac{0.05}{0.005} , T = 298 K , R = 8.314 J/(mol.K) and E_{a}^{ala-pro}=60kJ/mol

So, \frac{0.05}{0.005}=e^{\frac{[E_{a}^{phe-pro}-(60000J/mol)]}{8.314J.mol^{-1}.K^{-1}\times 298K}}

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So, activation energy of phenylalanine-proline peptide is 66 kJ/mol

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To explain the photoelectric effect, Albert Einstein linked the photoelectric effect to an idea from which scientist?
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