If the Sun Converts 5 × 10¹¹ Kg of H

question 63

Multiple Choice

If the Sun converts 5 × 10¹¹ kg of H to He per second and the mass of a single hydrogen nucleus is 1.7 × 10⁻²⁷ kg,how many net proton-proton reactions go on per second in the Sun? What is the luminosity produced if the mass difference between a single helium nucleus and four hydrogen nuclei is 4 × 10⁻²⁹ kg? Note that 1 Watt = 1 m² kg/s³.

• A)7 × 10³⁷ reactions per sec;3 × 10²⁶ Watt
• B)3 × 10³⁸ reactions per sec;10²⁷ Watt
• C)3 × 10³⁸ reactions per sec;4 × 10²⁶ Watt
• D)7 × 10³⁷ reactions per sec;5 × 10²⁵ Watt
• E)3 × 10³⁷ ractions per sec;6 × 10²⁴ Watt

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Definitions:

Fractions

Mathematical expressions representing the division of one quantity by another, indicating a part of a whole.