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In a certain process, 245 j of work was done by a system on its surroundings and 445 j of heat was lost to the surroundings. What was the change in E for the system?

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sebassandin

Answer:

Δ[tex]E=-690J[/tex]

Explanation:

Hello,

Based on the first law of thermodynamics:

[tex]W-Q=[/tex]Δ[tex]E[/tex]

Now, since the work is done by the system and the heat was released from the system both of them are negative, thus:

Δ[tex]E=-245J-445J=-690J[/tex]

Best regards.

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