A) \[0.186{}^\circ C\]
B) \[0.0512{}^\circ C\]
C) \[0.092{}^\circ C\]
D) \[0.2372{}^\circ C\]
Correct Answer: B
Solution :
[b] \[\Delta {{T}_{b}}={{K}_{b}}\frac{{{W}_{B}}}{{{M}_{B}}\times {{W}_{A}}}\times 1000;\] \[\Delta {{T}_{f}}={{K}_{f}}\frac{{{W}_{B}}}{{{M}_{B}}\times {{W}_{A}}}\times 1000;\] \[\frac{\Delta {{T}_{b}}}{\Delta {{T}_{f}}}=\frac{{{K}_{b}}}{{{K}_{f}}}=\frac{\Delta {{T}_{b}}}{-0.186}=\frac{0.512}{1.86}=0.0512{}^\circ C.\]You need to login to perform this action.
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