Vibrations of some molecules will absorb infrared radiation while others will not. do the following vibrations absorb? select yes or no. nitrogen- yes or no? ? dichlorodfluoro-methane- yes or no? ? carbon dioxide- yes or no? ?

nitrogen-(no)dichlorodfluoro-(yes) carbon dioxide-(yes)

A molecule is considered to be Ir active it there is change in its dipole moment due to any of the vibrations

Or

A molecule will absrobe IR-radiation in a vibration where there is a change in dipole moment

a) N₂: nitrogen is a linear, symmetric and non polar molecule as it is homoatomic. So there will be no vibration where it may show change in dipole, Hence it will not absorb IR radiations

b) CCl₂F₂: dichlorodifluoromethane it is asymmetric molecule and will show change in dipole during vibration of bonds and hence will absorb Ir

c) CO₂: it is linear molecule but due to difference in electronegativity of two atoms there will some change in dipole during asymmetric vibrations

Hence will absorb IR radiation

send me question so i can u

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.