Questions

Why oxygen and carbon dioxide exists as gas at room temperature?

Why oxygen and carbon dioxide exists as gas at room temperature?

Oxygen is more electronegative than carbon. Therefore, the oxygens pull the electrons towards themselves with the same force on either side of the carbon atom. These are very weak intermolecular forces that are overcome at room temperature. Thus, carbon dioxide molecules are able to move freely as a gas.

Why carbon dioxide is a gas at room temperature and sublimes as a solid?

Solid carbon dioxide does indeed sublime rather than melt first and then turn into a gas. This has to do with the bonds that hold carbon dioxide together. The carbon dioxide molecule is symmetric with an oxygen molecule at either end of a carbon molecule.

Why is carbon dioxide a gas at room temp?

The linear CO2 molecules are non-polar and so the intermolecular forces in carbon dioxide are too weak to allow the formation of molecular aggregates. That is why carbon dioxide is a gas at room temperature.

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Why water is a liquid at room temperature?

At room temperature (anywhere from zero degree centigrade to 100 degrees centigrade), water is found in a liquid state. This is because of the tiny, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a second. Water molecules are constantly on the move.

What is the room temperature of carbon dioxide?

Explanation: Carbon dioxide is a gas at room temperature. The sublimation point of carbon dioxide (dry ice) is −78.5∘C .

What phase is carbon dioxide at room temperature?

gas
Carbon dioxide, for example, is a gas at room temperature and atmospheric pressure, but becomes a liquid under sufficiently high pressure. If the pressure is reduced, the temperature drops and the liquid carbon dioxide solidifies into a snow-like substance at the temperature –78ºC.

Is co2 liquid at room temperature?

Carbon dioxide is a gas at room temperature. The sublimation point of carbon dioxide (dry ice) is −78.5∘C . Sublimation is the process of solid turning into gas without passing through the liquid state, where, melting is the process of a solid turning into liquid upon heating.

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What element are liquid at room temperature?

mercury
Only two elements on the periodic table are elements at room temperature. They are mercury (a metal) and bromine (a halogen). Four other elements are liquids slightly warmer than room temperature. They are francium, cesium, gallium, and rubidium (all metals).

What is room temperature water?

Fahrenheit Kelvin
boiling point of water 212 F 373 K
body temperature 98.6 F
cool room temperature 68 F
freezing point of water 32 F 273 K

Is co2 a liquid at room temperature?

Why is CO2 a gas and H2O a liquid at room temperature?

Water has relatively strong hydrogen bonds holding the molecules together but CO2has only dispersion forces acting as intermolecular forces. The weaker intermolecular forces explains why CO2is a gas whereas H2O is a liquid at room temperature.

Is water a solid liquid or gas at room temperature?

Water is a liquid at room temperature due to the presence of hydrogen bonds between water molecules. The state of a molecule is determined by intermolecular forces, such as dipole-dipole interactions, Van der Waals forces (also called London dispersion forces), and hydrogen bonds.

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What is the boiling point of carbon dioxide at room temperature?

The boiling point of water is 100* Celsius which is far more than room temperature which is nearly 30* Celsius while carbon di oxide has a boiling point of -57* Celsius which is very less than that of room temperature.due to this fact water a liquid at room temperature whereas carbon dioxide is a gas at room temperature…!!

Is there a liquid form of carbon dioxide?

But there is a liquid form of carbon dioxide. Substances are in the state of being gas, liquid or solid depending on two factors: temperature and pressure. This principle also applies to carbon dioxide, get the temperature and pressure right and liquid carbon dioxide will form.