How does a sample of hydrogen at 10 °c compare to a sample of hydrogen at 350 k? a. the hydrogen at 10 °c has a higher average kinetic energy than the sample at 350 k. b. the hydrogen at 10 °c has lower nuclear energy than the sample at 350 k. c. the hydrogen at 10 °c has slower-moving molecules than the sample at 350 k. d. the hydrogen at 10 °c has smaller molecules than the sample at 350 k.

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C. The hydrogen at 10 °C has slower-moving molecules than the sample at 350 K.

Explanation: -

The kinetic energy of gas molecules increase with the increase in the temperature of the gas. With the increase in kinetic energy, the gas molecules also move faster. Thus with the increase of temperature, the speed of the molecules increase.

Temperature of first hydrogen gas sample is 10 °C.

10 °C means 273+10 = 283 K

Thus first sample temperature = 283 K

The second sample temperature of the hydrogen gas  is 350 K.

Thus the temperature is increased.

So both the kinetic energy and speed of molecules is more for the hydrogen gas sample at 350 K.

Thus the hydrogen at 10 °C has slower-moving molecules than the sample at 350 K.

Hence the answer is C.

a is the answer to this question

explanation:

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.