Fluctuations in flame temperature affect the reproducibility of atomic emission experiments more so than atomic absorbance experiments.Which of the following statements explain this phenomenon?
I As temperature increases there is an increase in emission intensity resulting from an increase in the excited state population;the apparent concentration is greater than the actual concentration.
II As temperature decreases there is a decrease in emission intensity resulting from an increase in the excited state population;the apparent concentration is greater than the actual concentration.
III As temperature increases there is a decrease in emission intensity resulting from a decrease in the excited state population;the apparent concentration is less than the actual concentration.
IV As temperature decreases there is a decrease in emission intensity resulting from a decrease in the excited state population;the apparent concentration is less than the actual concentration.
A)II and III
B)I and IV
C)I and III
D)II and IV
E)None of these statements explains this phenomenon.

Question

Quizplus · Accepted Answer

Atomic emission depends on the population of excited states, which increases with temperature, leading to higher emission intensity (I). Conversely, a decrease in temperature reduces the excited state population, lowering emission intensity (IV).

Fluctuations in Flame Temperature Affect the Reproducibility of Atomic Emission