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How can one determine the free energy change in a system without any cost involved?
One can determine the free energy change in a system without any cost involved by using the equation: G H - TS, where G is the change in free energy, H is the change in enthalpy, T is the temperature in Kelvin, and S is the change in entropy. This equation allows for the calculation of free energy change based on the enthalpy and entropy changes in the system at a given temperature.
What else can I help you with?
Is energy flow involved in a change in state?
Yes, energy flow is involved in a change in state. When a substance changes state, such as from solid to liquid, energy is either absorbed or released. This energy is needed to break the bonds between molecules in the solid state or to form new bonds in the liquid state.
What is the significance of the Gibbs free energy diagram in understanding the thermodynamic feasibility of a chemical reaction?
The Gibbs free energy diagram helps determine if a chemical reaction is likely to occur by showing the energy changes involved. If the overall change in Gibbs free energy is negative, the reaction is thermodynamically feasible and likely to happen.
How can you determine whether an equation is endothermic or exothermic?
To determine if an equation is endothermic or exothermic, you can look at the overall energy change. If the reaction absorbs energy from the surroundings, it is endothermic. If the reaction releases energy into the surroundings, it is exothermic. This can be determined by comparing the energy of the reactants to the energy of the products.
How can enthalpy help in determining the heat transfer of a chemical reaction?
Enthalpy is a measure of the heat energy in a chemical reaction. By calculating the change in enthalpy during a reaction, scientists can determine the amount of heat transferred. This helps in understanding the energy changes involved in the reaction and predicting its heat effects.
Latent heat is the energy required for 1 kg of a substance to change?
Latent heat is the energy required for 1 kg of a substance to change ___________. phase
The energy involved in a phase change is called the?
Heat associated with phase change is called Latent Heat
Is energy flow involved in a change in state?
Yes, energy flow is involved in a change in state. When a substance changes state, such as from solid to liquid, energy is either absorbed or released. This energy is needed to break the bonds between molecules in the solid state or to form new bonds in the liquid state.
What is always involved in physical or chemical change in matter?
Energy is always involved.
Is energy change only involved with chemical change?
Energy changes are possible also in other situations.
How is energy related to the change of state?
Well...kinetic energy is involved with melting
What type of energy is involved when there is a change in temperature?
Thermal (heat) energy - which is the kinetic energy of atoms/molecules.
Is energy transfer involved in every physical and chemical change?
No
Is energy involved in every physical and chemical change?
It is true.
How do you determine specific heat for sodium without water?
To determine the specific heat of sodium without water, you can use methods such as calorimetry or differential scanning calorimetry. In these methods, you would measure the temperature change of a known mass of sodium as it absorbs or releases heat energy. By measuring the temperature change and knowing the amount of heat energy involved, you can calculate the specific heat capacity of sodium.
Latent heat energy levels?
Latent heat is the energy absorbed or released during a phase change without a change in temperature. It is classified into two types: latent heat of fusion, which is the energy involved in changing a substance from solid to liquid or vice versa, and latent heat of vaporization, which is the energy associated with changing a substance from liquid to gas or vice versa. These energy levels vary depending on the substance and the phase change involved.
Is flash cameras flashing a chemical or physical change?
The flash of a camera is a physical change, not a chemical change. A physical change is a change in the form of a substance without changing its chemical composition. In the case of a camera flash, electrical energy is converted into light energy, which is a physical process that does not alter the chemical makeup of the components involved.
What energy is involved in ice changing to liguid?
Thermal energy, melting of ice is a physical change of phase.
