Answer:
0.663 KJ
Step-by-step explanation:
The amount of work produced by the heat engine can be calculated using the formula for thermal efficiency:
Thermal efficiency = (work output / heat input) x 100%
Rearranging this formula gives:
Work output = (thermal efficiency / 100%) x heat input
Substituting the given values, we get:
Work output = (51% / 100%) x 1.3 kJ = 0.663 kJ
Therefore, the amount of work produced by the heat engine is 0.663 kJ (rounded to three decimal places).