6. Temperature is proportional to kinetic energy of the atoms and molecules (T,F) 7. Heat is...
6. Temperature is proportional to kinetic energy of
the atoms and molecules (T,F)
7. Heat is the random motion of the atoms and molecules (T,F)
8. A gas that expands cools (T,F)
Homework Answers
(6) Average Kinetic energy associated with each atom and molecule
Where K=Boltzmann Constant
We can see that Kinetic energy of gas depends only upon the absolute temperature of gas and Vice-versa.
So given statement is true.
----------------------------------------------------------------
(7)Heat is the transfer of energy from one
medium to other or from one energy source to a medium.According to
first law of thermodynamics the heat energy is the sum of change of
internal energy(
)of
substance and work done (W) by substance.
It means Heat is not only the random motion of molecules and atoms.so given statement is false.
-----------------------------------------------------------------
(8)When gas expands then it does work.If there is no other source of energy then in order to do such work done internal energy of gas decreases as a result temperature of gas also decreases.
So given statement is true.
Add Answer to:
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The average kinetic energy of the molecules in a gas sample depends only on the temperature,...
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molecules are in continual random motion with collisions being
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