What is the difference between the law of conservation of mass and the law of conservation of energy?

The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. The carbon atom changes from a solid structure to a gas but its mass does not change. Similarly, the law of conservation of energy states that the amount of energy is neither created nor destroyed.

What are the conditions under which the law of conservation of energy is applicable?

Mechanical energy is conserved when there are no non-conservative forces acting on the body. Examples are friction and elastic forces of stress in a body. These non-conservative forces convert mechanical energy to other forms of energy like heat and sound.

Why law of conservation of mass should be called as law of conservation of mass and energy?

Mass is not conserved in chemical reactions. The fundamental conservation law of the universe is the conservation of mass-energy. This means that the total mass and energy before a reaction in a closed system equals the total mass and energy after the reaction. Energy cannot be created out of nothing.

Does the law of conservation of mass apply to volume?

Since the mass remains constant, the product of the density and volume also remains constant. (If the density remains constant, the volume also remains constant.) The shape can change, but the mass remains the same.

What is law of conservation of mass explain with example?

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted.

What does law of conservation of mass depict?

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

What do you understand by conservation of energy?

conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. The first kind of energy to be recognized was kinetic energy, or energy of motion. At all times, the sum of potential and kinetic energy is constant.

Which statement best describes the law of conservation of mass?

Which statement is correct for the law of conservation of mass?

How do you find the law of conservation of mass?

Compare the initial mass (m2) of the reaction mixture (before the precipitation) with the final mass (m3) of the reaction mixture (after the precipitation). If the two masses are same within the reasonable limits, then the law of conservation of mass stands verified.

What is meant by conservation of mass?

Conservation of mass requires that the time rate of change of mass. within the control volume equals the rate at which mass enters the control volume plus. the rate at which mass is gained or lost within the control volume due to sources and.

How is the mass of water conserved during condensation?

In this process, water is initially in gas phase, but then it undergoes a condensation process. At the final state, water is in liquid phase. The conservation of mass requires that the mass of water at its initial state (steam) be equal to the mass of liquid water. Mass is also conserved in chemical reactions.

How is mass conserved in a chemical reaction?

The conservation of mass requires that the mass of water at its initial state (steam) be equal to the mass of liquid water. Mass is also conserved in chemical reactions. For example, consider oxidation of hydrogen. The product of reaction is water.

How does the mass of a control volume change with time?

For the control volume shown, the rate of change of mass inside the volume is given by the difference between the mass flow rate in and the mass flow rate out. If the mass inside the control volume changes with time it is because some mass is added or some is taken out. In the special case of a steady flow, , therefore.