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What is the value of internal energy in a cyclic process in thermodynamics?
Since internal energy is a state function and a cyclic process always returns to the same state (that's how you define a cyclic process), the value of the the internal energy will remain constant. That is not to say that it doesn't change along the cyclic path during the process - just that it always returns to the same value when the cycle is complete.
How does the volume change in an isentropic process?
The entropy of an ideal gas during an isothermal process may change because normally the entropy is a net zero. The change of on isothermal process can produce positive energy.
What is the change in the internal energy of a system that absorbs 2.500J of heat and that does 7.655J of work on the surroundings is?
The change in internal energy is the sum of heat added to the system and work done by the system on the surroundings. So, the change in internal energy is 2.500J (heat absorbed) - 7.655J (work done), resulting in a change of -5.155J.
When a pure substance is heated or cooled but does not change state the energy as heat is the what?
The energy as heat is being used to increase or decrease the temperature of the pure substance. This process involves changing the internal energy of the substance without causing a phase transition.
Is it a chemical or physical change when energy in food molecules is transferred into molecules of ATP?
It is a chemical change. The process involves breaking down the chemical bonds in food molecules to release energy, which is then used to synthesize ATP molecules through chemical reactions within the body.
What are the two ways in which internal energy can be transferred?
Internal energy can be transferred through heat and work.
What is the transferred to an object when work is done?
When work is done on an object, energy is transferred to the object. This can result in a change in the object's motion, position, or internal energy.
What is the relationship between the work done in an adiabatic process and the change in internal energy of a system?
In an adiabatic process, the work done is equal to the change in internal energy of a system.
What is the relationship between internal energy and temperature in an isothermal process?
In an isothermal process, the internal energy of a system remains constant because the temperature does not change. This means that the relationship between internal energy and temperature is that they are directly proportional in an isothermal process.
What is the relationship between the work done by an expanding gas and the change in its internal energy?
The work done by an expanding gas is directly related to the change in its internal energy. When a gas expands, it does work on its surroundings, which can lead to a change in its internal energy. This change in internal energy is a result of the work done by the gas during the expansion process.
Is in the adiabatic process change in internal energy is equal to change in work done?
In an adiabatic process, where there is no heat exchange with the surroundings, the change in internal energy is equal to the negative of the work done. This relationship is a result of the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
What is the relationship between the internal thermal energy of a system and its overall temperature change?
The internal thermal energy of a system is directly related to its overall temperature change. When the internal thermal energy of a system increases, the temperature of the system also increases. Conversely, when the internal thermal energy decreases, the temperature of the system decreases. This relationship is governed by the principle of conservation of energy, where energy cannot be created or destroyed, only transferred or converted.
If 800 joules of heat are added to a gas in an isochoric process what is the change in its internal energy?
The change would be 100 joules, because an isochoric system can not perform the work.
Is heat only transferred if there is no temperature change?
Heat can be transferred even if there is no change in temperature. Heat transfer occurs when energy moves from a warmer object to a cooler object, leading to a change in internal energy without necessarily changing the temperature.
If 400 J of heat are added to a gas in an isochoric process comma what is the change in its internal energy?
In an isochoric (constant volume) process, there is no change in volume, so the work done is zero. Therefore, all the heat added goes into increasing the internal energy of the system. The change in internal energy of the gas would be equal to the heat added, which in this case is 400 J.
What is the relationship between work, heat transfer, and change in internal energy in a thermodynamic system?
In a thermodynamic system, work, heat transfer, and change in internal energy are related through the first law of thermodynamics. This law states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. This relationship helps to understand how energy is transferred and transformed within a system.
What is transferred when you see a change in the environment?
Energy is being transferred when you see a change in the environment.
