8
AssignmentMultiple Choice

The Nucleus

Question 8 • SVHS Chemistry 1 $FA

Kilograms represented by the mass defect for oxygen-16: 2.20 × 10 -28 kgWhat is the nuclear binding energy for oxygen-16?

Answer
A
3.0 × 108 J
B
6.60 × 10-20 J
C
1.98 × 10 -11 J
D
3.69 x 10-24 J

Explanation

Use Einstein’s equation, E = mc². With a mass defect of 2.20 × 10⁻²⁸ kg and c = 3.00 × 10⁸ m/s, E = (2.20 × 10⁻²⁸)(3.00 × 10⁸)² = 1.98 × 10⁻¹¹ J, so the nuclear binding energy is choice C.

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