Answer:
See explanation
Explanation:
At the same temperature, the average kinetic energy of gases depends on the molecular mass of the gas. Hence, given a particular temperature, lighter molecules travel faster on the average than heavier molecules.
Considering ethanol and octane, The molar mass of ethanol is 46.07 g/mol while the molar mass of octane is 114.23 g/mol. Hence, ethanol has a greater average kinetic energy than octane at the same temperature.
Well thats a pretty difficult question, I think the answer might be 4
A layer above the earth that protects the planet from dangerous UV that are sent from the sun
The ball stops moving because of friction force. Friction is the force that opposes all motion. Therefore, the answer is friction force...
I had this same question a while back, so I may not be right, but I'm pretty sure it's D. None of the above.
