Which type of rock forms as a result of cooling and crystallization?

The answer is igneous rock.

Explanation:

There are three types of rocks:

Sedimentary rocks: these are the rock which composed of sand particles , pebbles, stones , shells etc and other fragments of material. There gradual accumulation over each other in the form of layers with a span of time gets harden and take s the shape of a big rock.

For example : limestone

Metamorphic rocks: These are the rock form under the surface of the rock due to high temperature and pressure under the earth surface.

For example : marble.

Igneous rocks: These are the rocks which are formed due to cooling of hot molten rocks that is magma.Sometimes under the earth due to cooling and hardening. Some times these types of rocks are also formed on the surface of the earth, by the means of eruption magma comes to surface of the earth and due fast cooling it gets hard to form rock.

For example : obsidian.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied