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.
Answer - Compared to gross growth efficiency, energy absorption efficiency - must be higher.
Gross growth efficiency is the relative percentage of carbon that goes into each process. With the absorption of energy, energy absorption efficiency occurs.
3. Why doped polymers exhibit absorption peaks in much lower energy compared to their pristine or undoped states?
Compared to the liquid phase, all materials in the solid phase have _________ . a. particles with less average kinetic energy b. particles with more average kinetic energy c. a higher density d. a lower density
a) Is the energy absorption associated with bands in an infrared spectrum of higher or lower energy than the lines appearing in a visible line spectrum. Explain? b) Identify the type of energy transition occuring in a molecule that causes a band to appear in an infrared spectrum. c) Identify the type of energy transition occuring in an atom that causes a line to appear in a visible line spectrum.
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
When computing economic growth, changes in nominal gross domestic product (GDP) must be adjusted to reflect population growth because: Choose one: A. changes in population tend to have no effect on standard of living. B. if real GDP remains the same, an increase in the population actually means a raised average standard of living .C. an increase in the population will tend to decrease average prices. D. an increase in population will tend to reduce nominal GDP. E. if real...
Q2- Why does a monopoly result in a loss of efficiency compared to a perfect competition framework? Can you think of a government policy which would result in a loss of efficiency?
Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER) rating that consumers can use to compare different models. A SEER rating is the ratio of heat pumped to energy input, similar to a COP but using English units, so a higher SEER rating means a more efficient model. You can determine the COP of an air conditioner by dividing the SEER rating by 3.4. For inside temperature 25 ∘C and outside temperature 36 ∘C when...
True statements about the absorption and emission of energy by an atom include which of the following? I. An atom can only absorb photons of light that have certain specific energies. II. An atom can emit photons of light of any energy. III. At low temperature, the lines in the absorption spectrum of an atom coincide with the lines in its emission spectrum that represent transitions to the ground state. A. I only B. III only C. I and III...
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