How much work will one Btu of heat energy perform?

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Multiple Choice

How much work will one Btu of heat energy perform?

Explanation:
One Btu of heat energy corresponds to about 778 foot-pounds of work. This comes from the conversion between energy and mechanical work: 1 Btu equals 1055.06 joules, and 1 foot-pound of work equals about 1.35582 joules. Dividing 1055.06 by 1.35582 gives approximately 778.17, so we round to 778 foot-pounds. The other values don’t match this standard conversion, so they aren’t correct.

One Btu of heat energy corresponds to about 778 foot-pounds of work. This comes from the conversion between energy and mechanical work: 1 Btu equals 1055.06 joules, and 1 foot-pound of work equals about 1.35582 joules. Dividing 1055.06 by 1.35582 gives approximately 778.17, so we round to 778 foot-pounds. The other values don’t match this standard conversion, so they aren’t correct.

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