Problem 2.5: How many BTUs are required to heat 500 gallons
From Chapter 2 Problem Set. Level 2: Applied Thinking.
Question
How many BTUs are required to heat 500 gallons of water from 60°F to 180°F? (Convert gallons to pounds first.)
Answer
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500 gal × 8.34 lb/gal = 4,170 lb. Q = 4,170 lb × 1.0 BTU/lb·°F × (180 − 60)°F = 4,170 × 120 = 500,400 BTU.