Btu's to Joules

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Btu's to Joules

Postby Guest in need » Wed Mar 23, 2005 4:01 am

How do i convert btu's (british) into joules. Thx
Guest in need

Postby Guest » Wed Mar 23, 2005 4:26 am

The BTU is based on temperature rise of a pound of water when heated. There are several types of BTU depending on the starting temperature of water.

I recommend the mean BTU = 1055.87 J or
the international BTU = 1055.056 J

Other published values (NIST SP811) range from 1054.68 to 1059.67

(there are some similar problems between the calorie and the Joule)

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