How does a sample of helium at 15 °c compare to a sample of helium at 215 k? the helium at 15 °c has a higher average kinetic energy than the sample at 215 k. the helium at 15 °c has lower nuclear energy than the sample at 215 k. the helium at 15 °c has slower-moving atoms than the sample at 215 k. the helium at 15 °c has smaller atoms than the sample at 215 k.

The answer is: The helium at 15 °C has a higher average kinetic energy than the sample at 215 K.

215 K is equivalent to -58.15 °C. Temperature is directly proportional to average kinetic enegry, so 15 °C has a higher average kinetic energy than the sample at -58.15 °C or 215K.

A) The helium at 15 °C has a higher average kinetic energy than the sample at 215 K.

Explanation:

I took the test and this was right ;)