Under what circumstances will the Law of Conservation of Mass not hold true?

Mass is therefore never conserved because a little of it turns into energy (or a little energy turns into mass) in every reaction. But mass+energy is always conserved. Energy cannot be created out of nothing. It can only be created by destroying the appropriate amount of mass according to E = mc2.

Are there exceptions to the Law of Conservation of Mass?

Conservation of mass – mass cannot be destroyed in any process, with one exception (see #6), and mass cannot be created from nothing. Conservation of charge – In any physical process, like a chemical reaction, the number of positive and negative charges remains the same after the process is complete.

What violates the conservation of mass?

Nuclear reactions appear to violate both the Laws of Conservation of Mass and Energy because mass is converted into energy or vice versa.

Is there any exceptions to the law of conservation of charge?

There are no exceptions. I see some answers are already claiming general relativity violates energy conservation. This is one of the most widespread myths in physics, and is absolutely false – energy is conserved because the laws of physics do not change with time, by Noethers theorem.

Does the law of conservation of mass apply to physical changes?

The Law of Conservation of Mass Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

Is mass conserved when wood or paper burns?

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. So the mass of the product equals the mass of the reactant.

What types of changes observe the law of conservation of mass?

What violates the law of conservation of momentum?

Conservation of momentum is violated only when the net external force is not zero. But another larger system can always be considered in which momentum is conserved by simply including the source of the external force.

Can charge affect the mass of a body?

The negative and the positive charges attract each other. Charging of any body is the process of increasing or decreasing the number of electrons. The mass of the electrons is almost negligible. Thus, the mass of the body remains unaffected while charging or discharging the body.

Does law of conservation of mass holds good for nuclear reactions?

Law of conservation of mass is not valid for nuclear reactions as it involves conversion of mass to energy (Nuclear fusion and fission).

Does the law of conservation of mass apply to physical changes how could you test this for melting ice for the distillation of water?

How can you test this for melting ice? Yes, if you fold a piece of paper it still has the same mass.

What are the assumptions of the law of Conservation of mass?

According to the law of conservation of mass, the mass of the reactants must be equal to the mass of the products for a low energy thermodynamic process. It is believed that there are a few assumptions from classical mechanics which define mass conservation.

What is the law of Conservation of mass in fluid mechanics?

Law of conservation of mass can be expressed in the differential form using the continuity equation in fluid mechanics and continuum mechanics as: \\(\\frac{\\partial \\rho }{\\partial t}+\\bigtriangledown (\\rho v)=0\\)

Is mass conservation of mass true for closed systems?

Mass conservation for closed systems continues to be true exactly. The mass-energy equivalence theorem states that mass conservation is equivalent to energy conservation, which is the first law of thermodynamics. The mass-energy equivalence formula requires closed systems, since if energy is allowed to escape a system, mass will escape also.

Why does my weight fluctuate on a daily basis?

Diet plays a major part in daily weight fluctuation, but other factors can also contribute to the scale moving up and down. Expending energy by burning calories can result in weight loss. But if you’re adequately hydrating, you may not see immediate weight loss on the scale.