Question

In which sample is the average kinetic energy of the particles the greatest?

1) 15mL of HCl(aq) at 20 degrees Celsius
2) 15mL of H2O(liquid) at 30 degrees Celsius
3) 10. mL of HCl(aq) at 25 degrees Celsius
4) 10. mL of H2O(liquid) at 35 degrees Celsius

Answer 1

Temperature is a measurement of average kinetic energy of the particles in a sample which means that the sample with the highest temperature has the highest average kinetic energy of the particles.

That being said the answer would be 4) 10 mL of H2O (l) at 35 degrees Celsius since that sample has the largest temperature.

I hope this helps. Let me know if anything is unclear.