The particles in which sample have the lowest average kinetic energy?

NY Regents Chemistry Exam Jan 2023

The particles in which sample have the lowest average kinetic energy? (1) 50. g of sulfur at 273 K (2) 40. g of aluminum at 298 K

(3) 30. g of sulfur at 303 K (4) 20. g of aluminum at 323 K

Solution: Temperature is the measure of the average kinetic energy. Since choice 1 has the lowest temperature, it should have the lowest average kinetic energy as well.