lohnnaw4813
13.02.2020 •
Physics
Use the drop-down menus to order the steps for writing chemical names from chemical formulas.
Identify the negative ion and write its name. Replace the ending with the suffix -ide.
Write the complete chemical name, with the name of the positive ion written first.
Identify the positive ion and write its name as is.
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Ответ:
The equation used here is ΔU=Q-W,
where, ΔU is the change in the system's internal energy, Q is the energy transferred to or from the system by heat, and W is the energy transferred to or from the system by work.
Known:
ΔU=400J
Q=1100 J
W=?
Plug into the equation:
400=1100-W
Therefore W=700 J.
So the system did 700 J of work.