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Yes it is state function
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∙ 10y ago
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What is the relationship between enthalpy and temperature?
Enthalpy is the amount of energy in a system and when this changes (when a reaction happens), the energy is either released (exothermic) or absorbed (endothermic) and this energy is usually released or absorbed as heat. Therefore when the enthalpy decreases, heat is released from the system making it exothermic. In contrast, when the enthalpy increases, heat is absorbed making it endothermic.
What is the difference between path function and state function?
state function did not depend on the path , it depends on the initial and final point of the system where as path function depends on the path of the reaction.
Internal energy and enthalpy how differ and relate to each other?
Enthalpy mathematically is the sum of the internal energy and work done in a process.internal energy is the sum of the kinetic energy,potential energy,vibrational energies etc
What is the difference between state table and truth table?
A state table defines the behaviour of the of the sequantial function
What is the difference between pure and impure function in computer language?
A pure function is one function that has no side effects or output and doesn't depend on any state beyond its local state's means it can be replaced by any other pure function which returns same result given the same inputs.This property is often referred as referential transparency
What is one reason to use Hess's law?
Because enthalpy is a state function and an extensive property.
Why is the enthalpy of sublimation is equal to the sum of enthalpy of fusion and enthalpy of vaporization?
Enthalpy is a state function, and to a first approximation does not depend on temperature. So the change in enthalpy to go from solid to a gas directly (sublimation) at some temperature is equal to the sum of the enthalpies associated with going from a solid to a liquid (fusion) and going from a liquid to a gas (vaporization) at other temperatures.
Enthalpy changes accompanying a change of state are than those accompanying the heating of a substance at each state?
Any change of state involve a change of the system enthalpy.
What is meant by state function?
A state function is one that depends only on the state of the system, not on how it got there. In quantum mechanics the states of interest are usually energy states. In the formalism of quantum mechanics, the state of a system at a given time is described by a complex wave function, also referred to as state vector in a complex vector space. This abstract mathematical object allows for the calculation of probabilities of outcomes of concrete experiments. For example, it allows one to compute the probability of finding an electron in a particular region around the nucleus at a particular time. Some of the states of interest are electron spin, electron energy level, harmonic oscillation frequencies, and the energy of individual particles, atoms, and molecules. Note that state functions are particularly appropriate for quantum mechanics where changes occur in discrete quanta rather than as a continuous path.
What does Hesses law state?
The enthalpy of a reaction is the sum of the enthalpies of intermediate reaction.
What does hess's law state?
The Enthalpy of a reastion is the sum of the enthalpies of intermediate reactions
What kind of energy of water increases as the water is heated by the coal?
As water is heated in a coal-fired boiler, the enthalpyof the water increases. Note that enthalpy is defined as:H = U + pVwhereH is the enthalpy of the systemU is the internal energy of the systemp is the pressure at the boundary of the system and its environmentV is the volume of the system.Also note that as a state function, enthalpy is expressed as a value relative to some reference state. For water, this is typically liquid water at the triple point, although other conventions are used such as liquid water at the normal freezing point.
Are enthalpy changes accompanying a change of state are smaller or larger than the heating substance at each state?
Larger.
What is the enthalpy of HDPE?
enthalpy LDPE
What is the difference in the enthalpy of vapor and enthalpy of gas of any substance?
As far as thermodynamics is concerned, vapor and gas are the same thing. The one possible exception is if you include a mist as a type of vapor. A mist is actually tiny droplets of liquid suspended in a gas, thus the "vapor" is actually liquid rather than gas. Likewise, smoke - a suspension of very find particulates in a gas - will not be the same phase as just plain gas. If you are actually trying to ask about enthalpy of vaporization vs the enthalpy in the gas phase, you can calculate the enthalpy of the gas relative to a reference state (where you have arbitrarily defined the enthalpy to be zero) by taking the energy required to take the substance from the reference state to a point where you know the enthalpy of vaporization, plus the enthalpy of vaporization at a known temperature and pressure, and then add the energy required to take the gas from that temperature and pressure to the final state. If your reference state is actually a solid, you might have to include steps to take the substance from solid to liquid as well.
What is relation between hydration energy lattice energy and enthalpy of solution?
enthalpy change of solution=enthalpy change of hydration - enthalpy change of lattice
Why is enthalpy change of atomization of bromine is higher than bond enthalpy?
because u need to dissconnect the inter-molecular bonds aswell.(it's natural state is liquid) not only the covalent ones.
