Posted by **jay** on Sunday, November 25, 2012 at 3:28pm.

COULD YOU FURTHER EXPLAIN HOW MANY BTU ARE REQUIRED TO RAISE THE TEMP OF500 GALLONS OF WATER FROM 70 DEGRESS TO 160 DEGREES FAHRENHIET

- PHYSICS -
**Damon**, Sunday, November 25, 2012 at 4:38pm
As Bob Pursley said

In general:

heat=mass*specificeheat*changetemp

or

heat in = mass of water * specific heat of water * (Final temp -original temp)

In these strange English units

weight in pounds is used for mass

weight = 500 gal * 8.31 pounds/gal = 4155 pounds

specific heat of water in these units = 1 BTU/pound

change in temp = 160 - 70 = 90 degrees F

so

BTU = 4155 * 1 * 90

= 373,950 BTU

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