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What factor must be constant for enthalpy to be equivalent to the total flow of heat?
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What is all matter is made of atoms and molecules that are in constant?
The total mass remain constant after a chemical reaction.
Does an increase in pressure at constant temperature increase the rate constant of a reversible reaction in both directions?
The rate constant is unaffected, as demonstrated by Arrhenius equation: k = Ae^(-E/RT) where A is the pre-exponential factor (constant for a particular reaction) E is the activation energy R is the molar gas constant T is the thermodynamic temperature However, when pressure is increased at constant temperature for a gaseous reversible reaction, the concentrations of every reactant and product increase by the SAME factor. Since Kp (pressure equilibrium constant) is to remain constant, it means that the position of equilibrium will shift in such a way so as to decrease the total number of moles of gaseous species. Note: This answer can be improved by proving the last statement using a general example which, due to lack of time, I skipped. (Although some people might get the logic!!!)
A total of mol of a compound is allowed to react in a foam coffee cup that contains g of water The reaction caused the temperature of the water to rise from 21.0 to 24.7 C What is the enthalpy of th?
1.393KJ/mol
What law of therodomicsThe total amount of energy in a closed system is constant?
The First Law.
Is it heat capacity is extencive or intensive?
anything that is "specific" is intensive. look at the units: J/(kg °K)that is, it doesnt depend on the quantity available.with "specific" properties, you multiple by the amount you want and you get the total amount of that property.
Why you measure enthalpy in H instead of H?
The total enthalpy of a system is called "H." That stands for "total enthalpy." It is not a measure of enthalpy. Enthalpy is measured in the SI or metric system in joules (abbreviated as J) or in customary units such as British Thermal Unit (BTU) or calories (cal).
The total amount of energy in an object is its?
enthalpy
What does the total amount of energy and mass equivalent energy in the universe never do?
The total energy and the mass equivalent energy in the universe remain constant. That "total" energy never changes.
What does Hess's law say about the enthalpy of a reaction?
The enthalpy of a reaction does not depend on the reactant path taken.
What is the difference between enthalpy change and enthalpy change per mole?
Enthalpy is the energy absorbed or lost from a reaction, but enthalpy change per mole is the amount of energy lost per mole, so in order to get the overall enthalpy from the change per mole, you must multiply that value by the amount of moles used in the reaction.
How bond formation and bond breaking related to enthalpy?
Enthalpy is the measurement of total energy change of a reaction. The energy of bond formation and bond breaking can be used to calculate the bond enthalpy of the reaction. Bond enthalpy is the enthalphy change when 1 mol of bond is broken. Therefore the general equation to calculate the enthalpy change is energy of bond broken subtract by energy of bond formation.
What is the physical significance of enthalpy?
it is the total energy required to create any system by displacing its volume and pressure.
What is the fomula of chemical energy?
Assuming chemical energy means the enthalpy change (measured in joules), there are several methods to calculate chemical energy, although there is no one 'formula'. The simplest way is to calculate the bond energies between the atoms in the molecules and subract the total initial energy from the total final energy. If bond energies aren't provided, more complex methods are required. If you're looking for the change in enthalpy in the reaction A --> D, and are given the changes in enthalpy for A --> B, B --> C, and C --> D, then adding the enthalpy changes for the given reactions will give you the desired enthalpy change.
Is the total distance traveled divided by constant speed eual constant speed?
No. The total distance traveled divided by constant speed is the time interval.
What is the formula for calculating constant pressure of heat capacity?
Cp = ΔH/ΔT = (ΔU+pΔV)/ΔT Where Cp is heat capacity at constant pressure, ΔH is enthalpy change, ΔT is temperature change, ΔU is total internal energy change, and pΔV is pressure multiplied by change in volume.
What is law of returns explain it with the help of schedule and diagram?
returns to factor means change in physical output of a good or a commodity when the quantity demanded of one factor is increase while that of the other factors remain constant . It is a short run phenomenon and can be possible in three ways they area) Increasing return to factor - increasing returns to a factor refers to a situation on when each additional unit of a variable factor adds more and more to the total output that is when marginal product of a factor increases as more of the variable factor is constantb) constant returns to a factor - constant returns to a factor refers to a situation in which additional units of a variable factors adds the same amount of output that is when the marginal product of the variable factor is constantc) Diminishing returns to a factor refers to a situation in which each additional unit of a variable factor adds lesser and lesser amount of output that is when marginal product of a factor falls as more of it is used
What is lattise energy?
It can be defined as the total amount of energy or the strength of the bonds in an ionic solid. It is also known as the enthalpy of formation.
