In winter, an electric heater uses a certain amount of electrical energy to heat a room to 20°C. In summer, an air conditioner uses the same amount of electrical energy to cool the room to 20°C. Is the change in internal energy of the heater larger, smaller, or the same as that of the air conditioner? Explain.
Answer:
The amount of change in internal energy is equal in both cases. Since they use the same amount of energy, and by the law of conservation of energy, change in energy of universe is zero, the change in energy of heather has to be equal to that of change in the air conditioner.
What defines internal energy?
internal energy, in thermodynamics, the belongings or country feature that defines the energy of a substance inside the absence of outcomes due to capillarity and external electric, magnetic, and other fields.
What sort of strength is internal energy?
internal energy is the microscopic electricity contained in a substance, given by using the random, disordered kinetic strength of the molecules. in addition it consists of the capacity electricity among these molecules, and the nuclear strength contained in the atoms of those molecules.
What's the unit of internal energy?
An energy form inherent in each gadget is the internal strength, which arises from the molecular nation of motion of depend. The symbol U is used for the internal power and the unit of measurement is the joules (J).
What does internal energy depend on?
The internal energy and enthalpy of best gases relies upon only on temperature, not on extent or stress. we can show these assets of best gases the use of belongings members of the family.
What is internal energy of air?
The inner power of the room is given by the molecular movement and is called because the kinetic internal energy given via 2fnRT. the usage of the fuel regulation we've PV=n RT and because the gasoline is mainly made out of nitrogen and oxygen each being diatomic we take the diploma of freedom as 5. for that reason we calculate inner power as 25PV=25×1.
Learn more about internal energy here:- https://brainly.com/question/25737117
#SPJ4
