Tag: properties of solids, liquid, and gas

Which of the following statements is false for inter-conversion of matter based on kinetic theory of gases, when a gas/liquid is cooled?

At the boiling point, particles become completely free and convert into _______.

Gas $\rightarrow$ Solid  conversion is known as:

Gas $\rightarrow$ Liquid  conversion is known as:

 At the melting point, the solid and liquid phase exist in:

Evaporation occurs .................... the boiling point.

During melting, the temperature:

Solid $\rightarrow$ Gas  conversion is known as:

Matter undergoes a change. The changes are of two types : Physical and chemical change. A physical change is a change that involves only a change in the physical state of matter.
Its chemical properties remain the same. Usually increasing the temperature of applying pressure or both brings about a physical change. On reversing the condition, i.e., reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible. A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, the chemical and physical properties of the substance is formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance. When zinc carbonate is heated and cooled, the change(s) that are observed are :

The translational kinetic energy of $10^{20}$ molecules of nitrogen at a certain temperature is $0.63$ J. The temperature is: