How many neon atoms are in 2.7 moles of neon ?

2.7 moles of neon contain 16.3 × 10²³ atoms of neon.

Explanation:

Given data:

Number of moles of neon = 2.7 mol

Number of atoms of neon = ?

Solution:

We will use using Avogadro number to solve given problem.

"It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance"

The number 6.022 × 10²³ is called Avogadro number.

1 mole of neon = 6.022 × 10²³ atoms of neon

2.7 mole of neon × 6.022 × 10²³ atoms of neon / 1 mole of neon

16.3 × 10²³ atoms of neon

Thus, 2.7 moles of neon contain 16.3 × 10²³ atoms of neon.

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.