One estimate of the original temperature of Earth is 7000 deg F Using this value and the following properties for Earths crust, Lord Kelvin obtained an estimate of 9 8 Atilde 10 7 years for the Earths age Icirc plusmn 0 0456 ft 2 h T 2 0 o F Comment on Lord Kelvins result by considering the exact e...

Use semiinfinite solution Gi ...

One estimate of the original temperature of Earth is 7000°F. Using this value and the following properties

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One estimate of the original temperature of Earth is 7000°F. Using this value and the following properties for Earth€™s crust, Lord Kelvin obtained an estimate of 9.8 Ã— 10⁷years for the Earth€™s age:

Î± = 0.0456 ft² /h

T₂ = 0^oF

От 0.02°F/ft, (measured) ду ly=0

Comment on Lord Kelvin€™s result by considering the exact expression for unsteady-state conduction in one dimension T – Ts х erf 2/at To - Ts

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Fundamentals Of Momentum Heat And Mass Transfer

ISBN: 9781118947463

6th Edition

Authors: James Welty, Gregory L. Rorrer, David G. Foster

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Question Posted: Oct 31, 2018 10:49 AM

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One estimate of the original temperature of Earth is 7000°F. Using this value and the following properties

Question:

От 0.02°F/ft, (measured) ду ly=0 T – Ts х erf 2/at To - Ts

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Use semiinfinite solution Gi...View the full answer

Fundamentals Of Momentum Heat And Mass Transfer

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