The standard enthalpy of formation of water is -241.82 kJ/mol.

ΔH = 2 * ΔHf°(NH3) = 2 * (-45.9) = -91.8 kJ

The standard enthalpy change is equal to the enthalpy of formation of CO2, which is -393.5 kJ.

The standard enthalpy change of formation is defined as the enthalpy change when one mole of a compound is formed from its elements in their standard states.

The standard enthalpy change of formation for an element in its standard state is defined as 0 kJ/mol.

The standard enthalpy change of formation for elements in their standard state is defined as zero.

The standard enthalpy change of formation for water at 25°C is -241.82 kJ/mol.

The standard enthalpy of formation for an element in its standard state is defined as 0 kJ/mol.

The standard enthalpy of formation for elements in their standard state is defined as 0 kJ/mol.

The reaction decreases the number of gas molecules from 3 to 2, leading to a decrease in disorder and thus a negative ΔS°.

The reaction results in a decrease in the number of gas molecules (from 3 to 2), leading to a negative change in entropy.

The reaction decreases the number of gas molecules from 3 to 2, leading to a decrease in entropy.

ΔG° depends on the specific reaction and its conditions.

Standard molar entropy is defined as the entropy of 1 mole of a substance at 25 °C and 1 atm pressure.

The standard state of a substance is defined as its most stable form at 1 atm pressure and 25°C.

Condensation is the process where gas turns into liquid as it loses energy.

Evaporation is the process of changing from liquid to gas.

Sublimation is the process where a solid changes directly into a gas.

Surface tension is the energy required to increase the surface area of a liquid.

Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid.

Evaporation is the process by which a liquid changes into a gas.

Evaporation is the process by which a liquid changes to a gas.

Evaporation is the process by which a liquid turns into vapor.

Evaporation is the process by which a liquid turns into vapor.

Desorption is the process of removing adsorbed molecules from a surface.

Adsorption is the process where a gas or liquid forms a thin layer on a solid surface.

Viscosity is the measure of a liquid's resistance to flow.

The boiling point is the temperature at which a liquid turns into vapor.

The boiling point is defined as the temperature at which a liquid's vapor pressure equals the external pressure.

The melting point is the temperature at which a solid becomes a liquid.