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Joules constant, 4.1868 J/cal, is an equivalence relation for 4.1868 Joules of work for 1 calorie of heat delivered to a substance. A BTU is a British Thermal Unit (another measure of heat). If 1 BTU=252 cal, how many kilojoules equal 6.1 BTU?Express your answer to 4 significant digits and include the proper unit.

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Answer:

The final answer is [tex]6.1 BTU = 6.5621*103 KJ[/tex]

Explanation:

[tex]1 BTU= 252 cal\\1 BTU =252 × 4.2 kJ\\6.1 BTU = 252 × 6.1×4.2 kJ = 6562.08 kJ\\ = 6.5621 × 103 kJ\\[/tex]

Hence, [tex]6.1 BTU = 6.5621 × 103 kJ[/tex]

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