phy1004 thermal physics
phy1004 thermal physics
phy1004 thermal physics
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<strong>phy1004</strong>W<br />
Thermal Physics<br />
IG-10<br />
Q11.2.a<br />
Two objects share a total energy E = E 1 +E 2 . There<br />
are 10 ways to arrange an amount of energy E 1 in<br />
the first object and 15 ways to arrange an amount<br />
of energy E 2 in the second object. How many<br />
different ways are there to arrange the total energy<br />
E = E 1 +E 2 so that there is E 1 in the first object and<br />
E 2 in the other?<br />
Ω(E) = Ω(E 1 ) Ω(E 2 )<br />
= (10)(15)<br />
= 150<br />
1) 10<br />
2) 15<br />
3) 25<br />
4) 150<br />
5) 1x10 15<br />
Using Greek symbol Ω “Omega” to represent # of ways<br />
47
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