the heat absorbed by the system at constant ________ is completely utilized to increase the internal energy of the system .( volume , pressure , temperature )
Answers
Answer:
Explanation:
The heat absorbed by the system at constant ____TEMPERATURE____ is completely utilized to increase the internal energy of the system.
Additional information
->Internal energy is the energy necessary to prepare the system in any given internal state.
->Equation : is ΔU = Q − W.
Here ΔU is the change in internal energy U of the system.
->It Ian assoiciated with first law of thermodynamics.
Answer:
The First Law of Thermodynamics states that energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances. Mathematically, this is represented as
ΔU=q+w(1)
with
ΔU is the total change in internal energy of a system,
q is the heat exchanged between a system and its surroundings, and
w is the work done by or on the system.
Explanation:
Work is also equal to the negative external pressure on the system multiplied by the change in volume:
w=−pΔV(2)
where P is the external pressure on the system, and ΔV is the change in volume. This is specifically called "pressure-volume" work.
The internal energy of a system would decrease if the system gives off heat or does work. Therefore, internal energy of a system increases when the heat increases (this would be done by adding heat into a system). The internal energy would also increase if work were done onto a system. Any work or heat that goes into or out of a system changes the internal energy. However, since energy is never created nor destroyed (thus, the first law of thermodynamics), the change in internal energy always equals zero. If energy is lost by the system, then it is absorbed by the surroundings. If energy is absorbed into a system, then that energy was released by the surroundings:
ΔUsystem=−ΔUsurroundings(3)
where ΔUsystem is the total internal energy in a system, and ΔUsurroundingsis the total energy of the surroundings.