A) 0.25
B) 0.79
C) 0.82
D) 0.49
Correct Answer: C
Solution :
\[i=\frac{\pi }{cRT}=\frac{4.5}{0.1\times 0.0821\times 300}=1.82\] \[i=1+\alpha \] \[\alpha =1.82-1=0.82\]
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