Describe the relationship of enthalpy, work, and internal energy. Calculate the AU for these reactions and determine if these reactions do work on the surroundings. The First Law of Thermodynamics states AU = Q + W. Imagine a container of gas with a moveable piston (shown below). Heat is transferred into the system ( pressure on the piston and move it. The gas is doing work on the piston which is _). The gas molecules will expand and put A) -Q; +W В) -Q; -W Heat Added С) +Q; -W D) +Q; +W

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Describe the relationship of enthalpy, work, and internal energy. Calculate the AU
for these reactions and determine if these reactions do work on the surroundings.
The First Law of Thermodynamics states AU = Q + W.
Imagine a container of gas with a moveable piston (shown below). Heat is
transferred into the system (
). The gas molecules will expand and put
pressure on the piston and move it. The gas is doing work on the piston which is
A) -Q; +W
В) -Q; -W
Нeat
Added
C) +Q; -W
D) +Q; +W
Transcribed Image Text:Describe the relationship of enthalpy, work, and internal energy. Calculate the AU for these reactions and determine if these reactions do work on the surroundings. The First Law of Thermodynamics states AU = Q + W. Imagine a container of gas with a moveable piston (shown below). Heat is transferred into the system ( ). The gas molecules will expand and put pressure on the piston and move it. The gas is doing work on the piston which is A) -Q; +W В) -Q; -W Нeat Added C) +Q; -W D) +Q; +W
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