Explain the spontaneous process, enthalpy of combustion, enthalpy of sublimation
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Spontaneous process :- A process is said to be spontaneous at a given temperature if it occurs of its own without the aid of external agency. Enthalpy of combustion:- it is defined as the enthalpy change when 1 mole of substance is completely burnt in excess of oxygen. Enthalpy of sublimation:-The enthalpy of sublimation, or heat of sublimation, is the heat required to change one mole of a substance from solid state to gaseous state at a given combination of temperature and pressure, usually standard temperature and pressure (STP). Hope you like .
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^^THERMODYNAMICS^^
1. Spontaneous Process
The physical or chemical process which proceeds by its own in a particular direction under given set of conditions without outside heir is called spontaneous process. It cannot be reversed.
All natural processes are spontaneous process.
2. Enthalpy of Combustion
It is the Enthalpy change taking place when one mole of a compound undergoes complete combustion In the presence of oxygen (ΔHc.)
ΔHc because process of combustion is exothermic.
3. Enthalpy of Sublimation
It is the enthalpy change, when one mole of a solid substance sublines
hope it helps!!
1. Spontaneous Process
The physical or chemical process which proceeds by its own in a particular direction under given set of conditions without outside heir is called spontaneous process. It cannot be reversed.
All natural processes are spontaneous process.
2. Enthalpy of Combustion
It is the Enthalpy change taking place when one mole of a compound undergoes complete combustion In the presence of oxygen (ΔHc.)
ΔHc because process of combustion is exothermic.
3. Enthalpy of Sublimation
It is the enthalpy change, when one mole of a solid substance sublines
hope it helps!!
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