3. Why doped polymers exhibit absorption peaks in much lower energy compared to their pristine or...
3. Why doped polymers exhibit absorption peaks in much lower energy compared to their pristine or undoped states?
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3. Why doped polymers exhibit
absorption peaks in much lower energy compared to their pristine or...
Compared to gross growth efficiency, energy absorption efficiency
Compared to gross growth efficiency, energy absorption efficiency a. must be lower. b. must be higher. c. can be lower but does not have to be. d. can be higher but does not have to be.
The following is absorption (A) and fluorescence (F) spectra of spinach chloroplasts. Draw an energy level...
The following is absorption (A) and fluorescence (F) spectra of spinach chloroplasts. Draw an energy level diagram for the chromophore showing transitions with arrows for the peaks at 730 nm, 683 nm, 678 nm, 625 nm, and 440 nm. Label the states. The peaks of absorption and emission bands are at slightly different wavelengths, why? 2. r -1.5 1.5 6787r683 -1.0 1.0H A H0.5군 0.5 F 0.0 400 Jo.0 800 600 700 WAVELENGTH (nm) 500 igure 1. Absorption (A) and...
1. (a) Why does buta-1,3-diene (max 217 nm) have a longer-wavelength (lower-energy) UV-Vis absorption peak as...
1. (a) Why does buta-1,3-diene (max 217 nm) have a longer-wavelength (lower-energy) UV-Vis absorption peak as compared to ethene (max 171 nm)? Include an energy level diagram with your answer. (b) What would you expect to happen as you add on to this structure with additional double bonds? Hint: consider the total number of p atomic orbitals contributing to each molecule, as depicted below. ?-? Ethene Butadiene
1.explain why there are more lines in the hydrogen emission spectrum than in the absorption spectrum?...
1.explain why there are more lines in the hydrogen emission spectrum than in the absorption spectrum? 2. indicate asborption, from a lower energy level to a higher energy level. Then indicate emission for the same transition as through various pathways, which would then result in many more emission peaks than there was in the original absorption (transition).
3) Which of the following are the reasons why FADH2 produce less ATP compared to NADH?...
3) Which of the following are the reasons why FADH2 produce less ATP compared to NADH? (3 points) I) Because it has lower oxidation potential compared to NADH II) Because it has lower reduction potential compared to NADH III) Because formation of FAD+ requires energy input IV) It pumps less number of H+ required for generation a) I and III b) III and IV c) I and IV d) II and IV
do all D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit...
do all
D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit a broad band with a shoulder? O An Intervalence Charge Transfer absorption overlaps with the d-d absorption. O [TI(OH2)]3+ contains ad Ti-ion and upon light absorption, there is degeneracy in the excited state leading to a Jahn-Teller distortion. O [TI(OH)]3+ contains ad Ti-ion and therefore there are two absorptions. O [TI(OH2)]** is partly reduced to [TI(OH)]2+ in aqueous solution and two absorptions which are...
1B. Next we zoom in on the lowest energy absorption band Absorbance of CO 2110 2140 Wavenumbers c...
plz...
1B. Next we zoom in on the lowest energy absorption band Absorbance of CO 2110 2140 Wavenumbers cm 2170 2180 2100 2120 2130 2150 2160 On the graph, the label P and R branches of the spectrum Fill in the table below Branch Label Starting J Frequency Final J P(2) P(3) R(0 R(2) Using the absorption energies of the peaks in your table, estimate Bo and B1 How much does the CO bond length change at v 1 vs...
absorption emission exicted states mwi Energy hy ΔΕ= hν AF=hv un ground state justify: why is...
absorption emission exicted states mwi Energy hy ΔΕ= hν AF=hv un ground state justify: why is each absorption process must be followed Dy emission process Bat not vice versa?? Dead line Week Starting 1s (o6th Rabea(I) 1441H) Turki AlSaleh Al
An x-ray absorption spectroscopy study was performed on a prototype Na ion battery. The fully charged...
An x-ray absorption spectroscopy study was performed on a prototype Na ion battery. The fully charged material is NaNio.sMno.sO2 and after discharging it changes to Naos NiosMnosO2. (a) Figure 1 shows XANES spectra for the NaNiosMnos02 and Nao.sNiosMno.sO2 materials compared to oxides State with reasons the probable oxidation states of the Ni and Mn cations in these materials. 4 marks) 2.0 Mn K-edge Ni K-edge 1.5 2 1.2 1.0 0.6 g 0.5 0.0 6530 6550 6570 6590 8320 8340 8360...
9) Why store energy as fat? Determine the NET yield of ATP from the complete oxidation...
9) Why store energy as fat? Determine the NET yield of ATP from the complete oxidation of one molecule of the fatty acid stearic acid (18:0) to Co, as compared to the complete oxidation of the 18 total carbons in 3 molecules of glucose. On an ATP/carbon basis, how much more efficient in percent), is the oxidation of fats than carbohydrates for providing energy to the cell? Show your work for each part. (8 points) Net ATP yield of stearic...
The following is absorption (A) and fluorescence (F) spectra of spinach chloroplasts. Draw an energy level diagram for the chromophore showing transitions with arrows for the peaks at 730 nm, 683 nm, 678 nm, 625 nm, and 440 nm. Label the states. The peaks of absorption and emission bands are at slightly different wavelengths, why? 2. r -1.5 1.5 6787r683 -1.0 1.0H A H0.5군 0.5 F 0.0 400 Jo.0 800 600 700 WAVELENGTH (nm) 500 igure 1. Absorption (A) and...
1. (a) Why does buta-1,3-diene (max 217 nm) have a longer-wavelength (lower-energy) UV-Vis absorption peak as compared to ethene (max 171 nm)? Include an energy level diagram with your answer. (b) What would you expect to happen as you add on to this structure with additional double bonds? Hint: consider the total number of p atomic orbitals contributing to each molecule, as depicted below. ?-? Ethene Butadiene
3) Which of the following are the reasons why FADH2 produce less ATP compared to NADH? (3 points) I) Because it has lower oxidation potential compared to NADH II) Because it has lower reduction potential compared to NADH III) Because formation of FAD+ requires energy input IV) It pumps less number of H+ required for generation a) I and III b) III and IV c) I and IV d) II and IV
do all
D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit a broad band with a shoulder? O An Intervalence Charge Transfer absorption overlaps with the d-d absorption. O [TI(OH2)]3+ contains ad Ti-ion and upon light absorption, there is degeneracy in the excited state leading to a Jahn-Teller distortion. O [TI(OH)]3+ contains ad Ti-ion and therefore there are two absorptions. O [TI(OH2)]** is partly reduced to [TI(OH)]2+ in aqueous solution and two absorptions which are...
plz...
1B. Next we zoom in on the lowest energy absorption band Absorbance of CO 2110 2140 Wavenumbers cm 2170 2180 2100 2120 2130 2150 2160 On the graph, the label P and R branches of the spectrum Fill in the table below Branch Label Starting J Frequency Final J P(2) P(3) R(0 R(2) Using the absorption energies of the peaks in your table, estimate Bo and B1 How much does the CO bond length change at v 1 vs...
absorption emission exicted states mwi Energy hy ΔΕ= hν AF=hv un ground state justify: why is each absorption process must be followed Dy emission process Bat not vice versa?? Dead line Week Starting 1s (o6th Rabea(I) 1441H) Turki AlSaleh Al
An x-ray absorption spectroscopy study was performed on a prototype Na ion battery. The fully charged material is NaNio.sMno.sO2 and after discharging it changes to Naos NiosMnosO2. (a) Figure 1 shows XANES spectra for the NaNiosMnos02 and Nao.sNiosMno.sO2 materials compared to oxides State with reasons the probable oxidation states of the Ni and Mn cations in these materials. 4 marks) 2.0 Mn K-edge Ni K-edge 1.5 2 1.2 1.0 0.6 g 0.5 0.0 6530 6550 6570 6590 8320 8340 8360...
9) Why store energy as fat? Determine the NET yield of ATP from the complete oxidation of one molecule of the fatty acid stearic acid (18:0) to Co, as compared to the complete oxidation of the 18 total carbons in 3 molecules of glucose. On an ATP/carbon basis, how much more efficient in percent), is the oxidation of fats than carbohydrates for providing energy to the cell? Show your work for each part. (8 points) Net ATP yield of stearic...
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