Element Of The Month Atomic Number
23
V
Vanadium
Average Atomic Mass
50.94
Class of Element: Transition Metal
Typical Color: Silverish
Density: 5.8 g/cm³ (at room temperature)
Melting Point: 1890°C
Boiling Point: 3380°C
e-configuration: [Ar]3d3 4s2
Atomic Radius: 1.34Å
Electronegativity: 1.63
Common Isotopes: V-48, V-49, V-50, V-51, V-52
Source(s): minerals (patronite, vanadinite)
Typical Use(s): catalyst, dye, color-fixer

that tool would be a compass

the answer is b. dilution

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.