What is the difference between classical and quantum mechanics?

Question

Chemistry stuff please help

Answer 1

Yes. Classical mechanics is newtonian mechanics. The type of mechanics that we apply in everyday life. For example statics and dynamics in engineering applications. We normally assume bodies to be rigid and continuous.

Quantum mechanic, however is a different story. We use it to explain the way subatomic particles behave. In quantum mechanics for, a particle may have to rotate 720 degrees for it to complete on 'revolution'. Quarks, muons and other partilcles are the major players.to predict how a quark will behave nor can you use quantum mechanics for flow in a pipe.

Relativistic mechanics is the other one that you must be aware about. This is einsteinian mechanics and you use it for very long distances and high velocities(SPEED OF LIGHT).

You can not use classical mechanics

I advise you to go to Wiki for a better explanation than this. Good luck.

Answer 2

Classical Mechanics Vs Quantum Mechanics

Answer 3

Only the scale of applicability. Most phenomena look continuous on the everyday scale. But things like charge and energy are not infinitely divisible. Some properties like spin don't even show up on the everyday scale. A planet can take an arbitrary orbit around its sun, but an electron orbit must also satisfy quantum constraints. The length of its orbit must be an integral multiple of the wavelength of its wavefunction.

Answer 4

In classical mechanics the position of something is known. In quantum mechanics you talk about the probability of where something is.