An automobile engine provides 527 Joules of work to push the pistons. In this process the internal energy changes by -2886 Joules. Calculate q for the engine. This represents the amount of heat that must be carried away by the cooling system. q = Joules

Respuesta :

Answer:   -2359 Joules

Explanation:

According to first law of thermodynamics:

[tex]\Delta E=q+w[/tex]

[tex]\Delta E[/tex]= Change in internal energy  = -2886 J

q = heat absorbed or released  = ?

w = work done or by the system  

w = work done by the system=[tex]-P\Delta V[/tex]  {Work is done by the system as the final volume is greater than initial volume and is negative}

w = -527 J

q = ?  

[tex]-2886=q+(-527)[/tex]

[tex]q=-2359J[/tex]  {Heat released by the system is negative}

Thus the amount of heat released by the system and carried away by the cooling system is -2359 Joules

AASESH

According to first law of thermodynamics:

= Change in internal energy  = -2886 J

q = heat absorbed or released  = ?

w = work done or by the system  

w = work done by the system=  {Work is done by the system as the final volume is greater than initial volume and is negative}

w = -527 J

q = ?  

 {Heat released by the system is negative}

Thus the amount of heat released by the system and carried away by the cooling system is -2359 JoulesAnswer:

Explanation: