Amixture of three noble gases has a total pressure of 1.25 atm the individual pressures exerted by neon and argon are 0.68 atm and 0.38 atm respectively. what is the partial pressure of the third gas ,helium

0.19 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

Given : = 1.25 atm

= 0.68 atm

= 0.38 atm

= ?

Putting in the values:

Thus partial pressure of the third gas helium is 0.19 atm

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.