The standard electrode potential of the hydrogen electrode is defined as 0.00 V.

The standard enthalpy change for the formation of a compound is denoted as ΔHf.

The standard enthalpy change for the formation of an element in its standard state is defined as zero.

The standard enthalpy change for the formation of water (H2 + 1/2 O2 -> H2O) is -285.83 kJ/mol.

ΔH = 2 * (-285.8 kJ) = -571.6 kJ

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

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.

The structural formula for 2-methylpropane is CH3-CH(CH3)-CH2-CH3.

The structural formula for hexane is C6H14.

The structural formula of 2-methylpropane is CH3-CH(CH3)-CH2-CH3.

The structural formula of propane is C3H8, indicating three carbon atoms.

DNA has a double helix structure, consisting of two strands that coil around each other.

Biomagnification refers to the increasing concentration of harmful substances in organisms at each trophic level of the food chain.

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.

Global warming refers to the gradual increase in the Earth's average temperature due to human activities, primarily the emission of greenhouse gases.