Open Question
Complete and balance each gas-evolution equation. a. HBr(aq) + NiS(s) → d. HClO4(aq) + Li2CO3(aq) →
6. Chemical Quantities & Aqueous Reactions
Gas Evolution Equations
Multiple Choice
Which of the following gases is not impacted at all by infrared radiation?
A
H_2O
B
N_2
C
CH_4
D
CO_2
Verified step by step guidance1
Understand that infrared (IR) radiation interacts with gases by causing changes in their molecular vibrations or rotations, which requires the molecule to have a changing dipole moment during these motions.
Recall that molecules like H_2O, CH_4, and CO_2 have polar bonds or molecular structures that allow them to absorb IR radiation because their vibrations change the dipole moment.
Recognize that N_2 is a homonuclear diatomic molecule with no permanent dipole moment and symmetric vibrations, so it does not absorb infrared radiation.
Conclude that because N_2 does not absorb IR radiation, it is not impacted by it, unlike the other gases listed.
Therefore, the gas not impacted at all by infrared radiation is N_2.
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