A) \[2.50\]
B) \[1.8\]
C) \[1.2\]
D) \[1.3\]
Correct Answer: B
Solution :
\[\Delta {{T}_{f}}=i{{K}_{f}}m\] \[m=\frac{10\times 1000}{74.55\times 100}=1.34m\] \[i-\frac{\Delta {{T}_{f}}}{{{K}_{f}}m}=\frac{{{4.5}^{o}}C}{({{1.86}^{o}}C/m)(1.34m)}\] \[=1.8\]
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