Pulse Rate at Rost
Pulse Rate
After Exercise
Student
Tested
70
А
B
97
106
74
D. Investigation 4
an inclined plane.
9-1-2021 SC.7.N.1.2
Correct:
Pulse Rate Before and After Exercise
During a laboratory activity, a group of students obtained the data
shown to the left. Which procedure would increase the validity of
the conclusions drawn from the results of the experiment?
(beats/min) (beats/min)
A. Decreasing the number of students participating in the
activity
B. Increasing the number of times the activity is repeated
C. Changing the temperature in the room
D. Eliminating the rest period before the resting pulse rate is
Average
taken
83
120
с
D
91
60
78
122
E
Group
107

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

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.