In the First Law of Thermodynamics,Δ​U​ = ​Q ​

question 12

Multiple Choice

In the first law of thermodynamics,Δ​U​ = ​Q ​ + ​W​,W is positive when

• A)the work is being done on the environment by the system.
• B)the work is being done on the system by the environment.
• C)the work is being done on the environment by the system,and the temperature of the system goes up.
• D)the work is being done on the system by the environment,and the temperature of the system goes up.

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