Chemistry
Why the change of reaction enthalpy is equal to reaction heat at constant pressure?
The change of reaction enthalpy is equal to reaction heat at constant pressure At constant temperature, when heat applied to the gas, that heat does…
Heat Radiation
Chemistry
What is Heterogeneous Equilibrium?
Heterogeneous equilibrium: At a reversible reaction reactants and products have different. phase at equilibrium is called heterogeneous equilibrium. Explain: CaCO3 → CaO (S) CO2 (g)…
Chemistry
Why Reversible Reaction never be Stopped?
A reversible reaction never is stopped. The incomplete reaction is the nature of actual equilibrium. That realize the value of the equilibrium constant. If the…
Chemistry
Define Homogeneous Equilibrium?
All reactants and products in the reaction have the same phase at equilibrium called homogeneous equilibrium. Homogeneous equilibrium refers to a state of equilibrium in…
Chemistry
When Celsius Scale Convert into Kelvin Scale, we add 273? why?
We divided the Celsius scale equally 100 pan from 0 – 100. On the other hand, Kelvin scale is divided equally 100 part from 273…
Chemistry
Explain the Le-Chateliar Principle
Le – Chateliar principle: When a system is at equilibrium, a change in any one of the factors (such as temperature, pressure, concentration) upon which…
Chemistry
Explain with reaction: value of neutralization enthalpy -57.3 Kj is appropriate for strong acid base
The value of neutralization enthalpy —57.3 Kj is appropriate for all strong acid base: The neutralization reaction of given acid and base HCl (aq) +…
Chemistry
Determine the dissociation Enthalpy of weak base Ammonium Hydroxide
Dissociation enthalpy of weak base Ammonium hydroxide (NH4OH) Let consider, Strong Acid, HCl = H+ + Cl– (Completely) Strong base, NaOH = Na+ + OH–…
Chemistry
What is Enthalpy?
Enthalpy: At a particular condition, the total stored energy of the system is called enthalpy of that system. Enthalpy H = U + PV U…
Chemistry
What is Heat of Combustion?
At a particular temperature and 1 atm pressure, 1 gm-mole of substance completely burn with O2. From this reaction heat is evolve that heat is…
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