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.

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.

Photosynthesis is the process by which plants absorb carbon dioxide (CO2) from the atmosphere and convert it into glucose.

Photosynthesis is the process by which plants absorb carbon dioxide and convert it into glucose and oxygen using sunlight.

Bioaccumulation refers to the process by which pollutants accumulate in the tissues of living organisms.

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

Recycling is the process of converting waste materials into reusable materials.

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.