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Which of the following is used to measure directly the average standard of living across countries?
Molecular Energy
The sum of kinetic and potential energy at the molecular level, influencing the motion and interactions of molecules.
Chemical Reactions
Processes that involve the rearrangement of molecular or ionic structure of substances, resulting in new products.
Temperature
A measure of the average kinetic energy of the particles in a system, reflecting the system's thermal state or degree of heat.
Catalysts
Substances that increase the rate of chemical reactions without being consumed in the process.
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