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Most substances that have molecules with approximately the same weight as water molecules are gases at room temperature. Water is a liquid at room temperature. Water is a liquid at room temperature be?
Wiki User
∙ 7y ago
...because water molecules have strong intermolecular forces (hydrogen bonding) holding the moelcules together in the liquid state. Most other substances with similar molar mass do not exhibit hydrogen bonding, and thus they exist as gases.
Wiki User
∙ 7y ago
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Why a liquid is less viscous at high temperature?
When the liquid is at high temperature, the molecules of liquid have more energy & spread further apart. This enables the molecules to move around much more in the liquid which makes it less viscous or fluid.
Is there a chemical difference between the gauseos and liquid state of the same substance?
There is no chemical difference, the only difference is the speed in which the molecules of the substances move. Slower molecules can be solid or liquid and very high speed molecules can be gas.
why is there no further rise in temperature when you heat a liquid at its boiling point?
The extra heat energy is being absorbed to change the liquid molecules into gas molecules by breaking the intermolecular attractions holding the molecules close together as a liquid.
For every liquid there is a temperature above which the kinetic activity of its molecules is so great that the attractive forces cannot keep them in a liquid state this temperature is called?
Critical temperature
What is the motion of a liquid particle?
All molecules are in constant motion. Molecules of a liquid have more freedom of movement than those in a solid. Molecules in a gas have the greatest degree of motion. Heat, temperature and the motion of molecules are all related. Temperature is a measure of the average kinetic energy of the molecules in a material. Heat is the energy transferred between materials that have different temperatures. Increasing the temperature increases the translational motion of molecules Energy is related to temperature by the relationship: E= kT
Why water is in liquid state not in gas state?
Other substances with molecules of a similar state are indeed in a gaseous state, at room temperature. It seems that water is liquid, at room temperature, because of its large electric dipole, which causes molecules to attract each other more than is usual for molecules of that size.Other substances with molecules of a similar state are indeed in a gaseous state, at room temperature. It seems that water is liquid, at room temperature, because of its large electric dipole, which causes molecules to attract each other more than is usual for molecules of that size.Other substances with molecules of a similar state are indeed in a gaseous state, at room temperature. It seems that water is liquid, at room temperature, because of its large electric dipole, which causes molecules to attract each other more than is usual for molecules of that size.Other substances with molecules of a similar state are indeed in a gaseous state, at room temperature. It seems that water is liquid, at room temperature, because of its large electric dipole, which causes molecules to attract each other more than is usual for molecules of that size.
Does the temperature of a liquid change due to evaporation?
Yes, it decreases. This is because the molecules of the liquid which have higher kinetic energy escape from the liquid, leaving the liquid with molecules having lower kinetic energy. The temperature of any substance is proportional to the kinetic energy of its molecules.
When the temperature of an object decreases what happens to the molecules?
In every liquid (with the exception of water) the molecules, when the temperature decreases, contract.
Why a liquid is less viscous at high temperature?
When the liquid is at high temperature, the molecules of liquid have more energy & spread further apart. This enables the molecules to move around much more in the liquid which makes it less viscous or fluid.
Which diotomic molecules are a liquid at room temperature?
Bromine, Br2, is a diatomic molecule that is liquid.
Why does water freeze faster than dishwashing liquid?
The dishwashing liquid cannot freeze, only the water and other liquids that are solvents, which will solidify at a given temperature. However, water that contains solutes (other substances in solution) freezes at a lower temperature than pure water. The reason is most simply explained by saying that the molecules of other substances "get in the way" of water molecules that are trying to form ice crystals as they are cooled (usually by colder air).
What is the temperature of a substance that has changed from a liquid to a gas?
If all substances are at equilibrium, the temperature is the boiling point, at the prevailing pressure, of the substance that has changed from liquid to gas.
When a liquid is at room temperature a few molecules escape into the air by what?
vaporization
Is there a chemical difference between the gauseos and liquid state of the same substance?
There is no chemical difference, the only difference is the speed in which the molecules of the substances move. Slower molecules can be solid or liquid and very high speed molecules can be gas.
why is there no further rise in temperature when you heat a liquid at its boiling point?
The extra heat energy is being absorbed to change the liquid molecules into gas molecules by breaking the intermolecular attractions holding the molecules close together as a liquid.
What gas is liquid at room temperature?
ALL liquid substances at room temperature become gaseous at higher (sometimes much higher) temperature called boiling point, unless they decompose at lower temperature.
How does liquefaction of gases takes place?
Liquefaction of gases is the process by which substances in their gaseous state are converted to the liquid state. When pressure on a gas is increased, its molecules closer together, and its temperature is reduced, which removes enough energy to make it change from the gaseous to the liquid state.
