Why is nearly all the Sun's energy produced in the inner 1.5% of its volume?

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Why is nearly all the Sun's energy produced in the inner 1.5% of its volume?

2007-10-06 11:36:13 · 2 answers · asked by New Mommy 1 in Science & Mathematics ➔ Astronomy & Space

2 answers

It takes tremendous heat and pressure (15M K, 3x10^16Pa) to sustain a fusion reaction. The Sun can reach these conditions only in its core, where the compressive force of its own gravity creates the environment needed.

2007-10-06 12:52:15 · answer #1 · answered by injanier 7 · 1⤊ 0⤋

Because this is where the pressure and temperature is greatest.

2007-10-06 21:50:28 · answer #2 · answered by johnandeileen2000 7 · 1⤊ 0⤋