Respuesta :

soooobored
read through it carefully,

1400J of "heat" was added to the system

only 600J of thermal energy was added to the system, or only 600J of the "heat" was used to change the temperature

so if only 600 of 1400J was used to affect the temperature, that means the remaining heat energy must have been converted to work

1400J-600J =
the answer is 800J

the formula to find change in energy is: 
heat - work = change in energy (your answer)

so to find the answer since you have the change in energy and the heat you would just minus the change in energy from the heat:)

to find this i just used the equation 1,400 - 600 = 800

I hope that made sense:)

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