A 200.-milliliter sample of CO2(g) is placed in a sealed, rigid cylinder with a movable piston at 296 K and 101.3 kPa. Determine the volume of the sample of CO2(g) if the temperature and pressure are changed to 336 K and 152.0 kPa.

The final volume of the sample of gas = 0.000151

Explanation:

Initial volume = 200 ml = 0.0002

Initial temperature = 296 K

Initial pressure = 101.3 K pa

Final temperature = 336 K

Final pressure =  K pa

Relation between P , V & T is given by

Put all the values in the above equation we get

= 0.000151

This is the final volume of the sample of gas.

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.