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Some amount of energy is transferred by heat into a system. The net work done on the system is 56 J, while the increase in its internal energy is 12 JWhat is the amount of net heat?

Respuesta :

Given,

The net-work done on the system is

[tex]\Delta w=56\text{ J}[/tex]

The increase in its internal energy is

[tex]\Delta U=12\text{ J}[/tex]

By the first law of thermodynamics.

[tex]Q=\Delta U-\Delta w[/tex]

Put the given values,

[tex]\begin{gathered} Q=12J-56\text{ J} \\ Q=-44\text{ J} \end{gathered}[/tex]

Thus, the amount of net heat is -44 J.

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