The linear expansivity of brass is 2 x 10 -5 C -1 . If the
PHYSICS
JAMB 1998
The linear expansivity of brass is 2 x 10-5C-1. If the volume of a piece of brass is 15.00cm3 at 00C, What is the volume at 100oC?
- A. 16.03cm3
- B. 16.00cm3
- C. 15.09cm3
- D. 15cm3
Correct Answer: C. 15.09cm3
Explanation
linear expansivity = \(\frac {V_2 - V_1}{V_1 {\times} {\Delta}{\theta}}\)
3 x 2 x 10-5 =\(\frac {V_2 - 15}{15 {\times} (100 - 0)}\)
V2 = 15.09cm3
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