Problem: Consider these fictitious internal energy gauges for a chemical system and its surroundings:Which diagram best represents the energy gauges for the same system and surroundings following an energy exchange in which ΔEsys is negative?
FREE Expert Solution
The relationship between internal energy, heat, and work is shown in the following equation:
ΔU = internal energy, J
q = heat, J
w = work, J
Before calculating internal energy, we have to identify heat (q) and work (w) first.
For heat, q:
▪ + q → if the system gains, takes in, or absorbs heat or energy
▪ – q → if the system loses, evolves, gives off, or releases heat or energy
For work, w:
▪ + w → work is done on the system by the surroundings (volume: compresses)
▪ – w → work is done by the system on the surroundings (volume: expands)
For the energy exchange given, -ΔEsys = + Δ Esurr.
Problem Details
Consider these fictitious internal energy gauges for a chemical system and its surroundings:
Which diagram best represents the energy gauges for the same system and surroundings following an energy exchange in which ΔEsys is negative?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Internal Energy concept. You can view video lessons to learn Internal Energy. Or if you need more Internal Energy practice, you can also practice Internal Energy practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Ratcliff's class at WVU.