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The greenhouse gases such as carbon dioxide, carbon monoxide, sulphur dioxide, ozone ( minor contribution), water vapour are the molecules of the gases which absorb infrared radiations.
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Which vibrational modes are affected when a molecule absorbs infrared electromagnetic energy?
When a molecule absorbs infrared electromagnetic energy, it affects the vibrational modes of the molecule.
What gas absorbs infrared radiation and contributes to the greenhouse effect?
The gas that absorbs infrared radiation and contributes to the greenhouse effect is carbon dioxide (CO2).
Which gas in the atmosphere absorbs infrared radiation?
Carbon dioxide (CO2) is the gas in the atmosphere that absorbs infrared radiation, contributing to the greenhouse effect and global warming.
Identify the type of energy transition occurring in a molecule that causes a band to appear in an infrared spectrum?
The type of energy transition that causes a band to appear in an infrared spectrum is the vibration of chemical bonds within the molecule. When the molecule absorbs infrared radiation, the energy is transferred to the bonds, causing them to vibrate. The resulting changes in the dipole moment of the molecule produce distinct peaks in the infrared spectrum.
What structural feature in a molecule is necessary for it to absorb infrared radiation as a gas?
The structural feature in a molecule necessary for it to absorb infrared radiation as a gas is the presence of dipole moments or vibrational modes that can interact with the infrared radiation.
What conditions must be met for a molecule to absorb infrared radiation?
For a molecule to absorb infrared radiation, it must have a change in its dipole moment when it vibrates. This means that the molecule must have different charges distributed unevenly within it, causing it to interact with the infrared radiation and absorb its energy.
How does nitrogen absorb infrared radiation?
Nitrogen absorbs infrared radiation by vibrating and rotating its molecules when they come into contact with the radiation. This vibration and rotation process allows nitrogen to absorb and trap the infrared energy, which can lead to warming of the atmosphere.
How do infrared thermometers work on water?
Infrared thermometers work on water by measuring the temperature of the water based on the infrared radiation it emits. Water absorbs and emits infrared radiation, allowing the thermometer to accurately measure its temperature without direct contact.
How does an infrared thermometer work on water?
An infrared thermometer works on water by measuring the infrared radiation emitted by the water's surface. Water absorbs and emits infrared radiation, allowing the thermometer to detect the temperature without making direct contact with the water.
What gas absorbs and emits radiation within the thermal infrared range?
Carbon dioxide (CO2) is a gas that absorbs and emits radiation within the thermal infrared range. This property contributes to the greenhouse effect and plays a significant role in regulating Earth's temperature.
Does the earth or the sun emit more infrared radiation?
The Earth emits more infrared radiation than the Sun. The Sun emits mostly visible light and ultraviolet radiation, while the Earth's surface absorbs this energy and reradiates it as infrared radiation due to its lower temperature.
Does black hold heat?
When a molecule absorbs visible or ultraviolet radiation, electrons in their ground state are promoted to higher states. Through various types of decay, the electrons fall back to their ground states. During this process, some infrared radiation is emitted, which is felt as heat. Black materials emit more infrared radiation because most of the decay of electrons from excited states to ground states involves infrared radiation emission.
