Question

If 10-7 J of heat is added to a system w is so large that its temperature () /" does not change, by what factor will the number of accessible states of the system increase if the temperature is 30 K? 

Answer 1

Solution.

$dQ=7J;$

$T=30K;$

$dS=\dfrac{dQ}{T};$

$dS=\dfrac{7J}{30K}=0.23J/K;$

If $dQ=10J$ then $dS=\dfrac{10J}{30K}=0.33J/K;$

Answer: $dQ=0.23 - 0.33J/K.$