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An engine has an input of heat energy of 10,750 J and does 2420 J of work. Which of the following is the heat loss?
A 0.225 J
B 4.44 J
C 8330 J
D 13,170 J

Sagot :

Indrawboyidn

The heat loss : C.8330 J

Further explanation  

The laws of thermodynamics 1 state that energy can be changed but cannot be destroyed or created  

The equation is:  

[tex]\rm \boxed{\bold{\Delta U=Q+W}}[/tex]  

This internal energy can change if it absorbs heat Q (U> 0), or releases heat (U <0). Or the internal energy can change if the system does work or accepts work (W)  

The sign rules for heat and work are set as follows:  

  • receives heat, Q +  
  • releases heat, Q -  
  • does work, W -  
  • accepts work, W +  

An engine has an input of heat energy of 10,750 J and does 2420 J of work.

Then :

+ Q = 10,750 J (receives heat)

- W = 2,420 J (does work)

Heat loss or internal energy changes :

[tex]\rm \Delta U=10,750-2,420\\\\\Delta U=\boxed{\bold{8330~J}}[/tex]

Learn more  

the heat capacity of the bomb calorimeter  

https://brainly.ph/question/1838433  

the combustion of sugar  

https://brainly.ph/question/1968331  

the heat capacity of a liquid and solid  

https://brainly.ph/question/1652238  

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