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Pick out the wrong unit conversion of thermal conductivity.

1 BTU/ft2.hr.°F/ft = 1.488 kcal/m2. hr.°C/m
1 BTU/ft2.hr.°F/inch = 1.488 kcal/m2. hr.°C/m
1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K
1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F

Correct Answer: 1 BTU/ft2.hr.°F/inch = 1.488 kcal/m2. hr.°C/m

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