A) \[-\,\,10\,\,kJ/K\]
B) \[-\,\,5\,\,kJ/K\]
C) \[5\,\,kJ/K\]
D) \[10\,\,kJ/K\]
Correct Answer: D
Solution :
\[\frac{{{Q}_{1}}}{{{T}_{1}}}=\frac{{{Q}_{2}}}{{{T}_{2}}}\] \[\frac{{{Q}_{1}}}{1000}=\frac{{{Q}_{2}}}{5000}\] \[{{Q}_{1}}=2{{Q}_{2}}\] Now \[\frac{{{Q}_{2}}}{{{T}_{2}}}=10,\] \[{{Q}_{2}}=500\times 10=5000\,\,kJ\] \[\therefore \,\,\,{{Q}_{1}}=2\times 5000=10,000\,\,kJ\] \[\Delta \,{{S}_{1}}\,\,=\,\,\frac{{{Q}_{1}}}{{{T}_{1}}}\,\,=\,\,\frac{10,000}{1,000}\,\,=\,\,10\,\,\text{kJ/K}\]
You need to login to perform this action.
You will be redirected in
3 sec
