Answer:
im not sure, are you sure?
A sample of liquid benzene at 80°C and a sample of gaseous benzene at 80°C will have the same average kinetic energy of benzene molecules.
Let us recall that the average kinetic energy of molecules depends on the molar mass of the substance as well as the temperature of the substance. We have that;
average kinetic energy= ![\frac{3RT}{2NA}](https://tex.z-dn.net/?f=%5Cfrac%7B3RT%7D%7B2NA%7D)
R = gas constant
NA =Number of molecules
M = Temperature in Kelvin
We can see that the average kinetic energy depends on temperature therefore, a sample of liquid benzene at 80°C and a sample of gaseous benzene at 80°C will have the same average kinetic energy of benzene molecules.
Learn more: brainly.com/question/6284546
Answer:
Kinetic energy decreases as temperature decreases.
Explanation:
From the description that the system at 80°C has longer arrows, or move faster than the system at 20°C, having shorter actors indicating a slower motion, we can conclude that the kinetic energy of a body depends on its temperature.
If the system at 80°C shows a greater kinetic energy (faster motion of particles) than the system at 20°C, it then implies that decreasing the temperature of the body decreases its kinetic energy.
Answer:
5 moles of H2
Explanation:
2 mol HCl * x mol H2 = 10 mol HCl
x=5
Check work:
5 mol H2 * 2 mol HCl/1 mol H2 = 10 mol HCl
<span>Li has fewer electrons than Li+ (protons can't change)
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