What do the symbols H and U represent in thermodynamics equations?

AI Thread Summary
In thermodynamics, the symbol H represents enthalpy, which is a measure of the total energy of a thermodynamic system, including internal energy and the energy required to displace its environment. The symbol U denotes internal energy, which refers to the energy contained within a system due to the kinetic and potential energies of its particles. Both concepts are crucial for understanding energy transfer and transformations in thermodynamic processes. For further details, resources on enthalpy and internal energy are available on Wikipedia. Understanding these symbols is essential for studying thermodynamic equations effectively.
Science news on Phys.org

Thread 'Entropy and configurations of microstates'

I was watching a Khan Academy video on entropy called: Reconciling thermodynamic and state definitions of entropy. So in the video it says: Let's say I have a container. And in that container, I have gas particles and they're bouncing around like gas particles tend to do, creating some pressure on the container of a certain volume. And let's say I have n particles. Now, each of these particles could be in x different states. Now, if each of them can be in x different states, how many total...
View full post »
Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Let's say we have a cylinder of volume V1 with a frictionless movable piston and some gas trapped inside with pressure P1 and temperature T1. On top of the piston lay some small pebbles that add weight and essentially create the pressure P1. Also the system is inside a reservoir of water that keeps its temperature constant at T1. The system is in equilibrium at V1, P1, T1. Now let's say i put another very small pebble on top of the piston (0,00001kg) and after some seconds the system...
View full post »

Thread 'Condensate rate of water for an air conditioning cooling coil'

I need to calculate the amount of water condensed from a DX cooling coil per hour given the size of the expansion coil (the total condensing surface area), the incoming air temperature, the amount of air flow from the fan, the BTU capacity of the compressor and the incoming air humidity. There are lots of condenser calculators around but they all need the air flow and incoming and outgoing humidity and then give a total volume of condensed water but I need more than that. The size of the...
View full post »

Similar threads

I Questions about my Understanding of Thermodynamics and Statistical Mechanics
Replies
2
Views
3K
A query about heat capacity and specific heat capacity
Replies
8
Views
2K
I Cannot understand formula for molar heat capacities of an ideal gas
Replies
22
Views
3K
Specific Heat Capacity for Gas
Replies
3
Views
2K
B How accurate is the definition of heat?
Replies
15
Views
2K
I Change of Variables in Thermodynamics
Replies
4
Views
2K
I Is the Equation h = u + (0.185)Pv Accurate for Converting Energy Units?
Replies
2
Views
2K
Heating substances in paper cups?
Replies
4
Views
3K
Understanding Enthalpy: Confusion Cleared Up | Thermodynamics Course"
Replies
14
Views
2K
I Minimization of thermodynamic equilibrium
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top