6. The heat of vaporization of a liquid is 1,340 Joules per gram. What is the minimum number of Joules needed
to change 40.0 grams of the liquid to vapor at the
boiling point?
A) 33.
B) 1,340
C) 3,280
D) 53,600
7. How many joules of heat are absorbed to raise the
temperature of 435 grams of water at 1 atm from
25°C to its boiling point, 100.°C?

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

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.