Question

An amount of nitrogen undergoes a physical change. Which property of physical chaAn amount of nitrogen undergoes a physical change and increases its volume. What can be known about this physical change?nges explains why matter is conserved in a physical change?

Answer 1

During a physical change involving an increase in the volume of nitrogen, its chemical composition remains unchanged, with the conservation of mass, atoms, and molecules, as described by relevant gas laws.

Step-by-step explanation:

When an amount of nitrogen undergoes a physical change and its volume increases, we can understand that despite the change in volume, the chemical composition of nitrogen remains the same. This is because, during a physical change, properties such as shape, state, and volume may change, but the substance's identity does not alter. Matter is conserved in a physical change, which means that the mass, number of atoms, and number of molecules of nitrogen remain constant before and after the change.

Physical changes like the one described can often be reversed, and they do not involve making or breaking chemical bonds. For instance, changes in volume due to temperature variations can be explained by gas laws, which relate the physical properties of a gas at any given time, such as Boyle's Law, Charles's Law, and the Combined Gas Law.