Exam: Cambridge English: C1 Advanced (CAE)

Definition: Describing a type of polymer structure where the side groups are arranged in a regular pattern, rather than randomly, in each repeating unit.

Example: The isotactic polymer has a uniform structure that enhances its strength and stability.

Definition: A line on a map that connects places with the same temperature at a specific time or over a certain period.

Example: The meteorologist used an isotherm to show the temperature distribution across the region.

Definition: Relating to processes or conditions where the temperature remains constant throughout.

Example: The isothermal process allowed the gas to expand without changing its temperature.

Definition: A line on a map or chart that connects points of equal temperature at a given time.

Example: The meteorologist used an isothermal map to show the temperature distribution across the region.

Definition: In a way that maintains a constant temperature during a process or reaction.

Example: The gas expanded isothermally, keeping the temperature steady throughout the experiment.

Definition: A type of chemical compound that includes a specific group of atoms known as the isothiocyanate group, which is related to isothiocyanic acid.

Example: Isothiocyanates are found in various plants and are known for their potential health benefits.

Definition: A type of atom that has the same number of neutrons as another atom but a different number of protons, resulting in different chemical properties.

Example: Carbon-14 and Carbon-12 are examples of isotones, as they have the same number of neutrons but different numbers of protons.

Definition: In a way that maintains equal pressure or concentration, often used in scientific contexts.

Example: The solution was mixed isotonically to ensure proper balance in the experiment.

Definition: A type of atom that has the same number of protons as another atom of the same element but a different number of neutrons, resulting in a different mass.

Example: Carbon-14 is a well-known isotope used in dating ancient artifacts.

Definition: Relating to isotopes, which are variants of a chemical element that have the same number of protons but different numbers of neutrons.

Example: The isotopic composition of the sample was analyzed to determine its age.

Definition: In a way that relates to isotopes, which are different forms of the same element with varying numbers of neutrons.

Example: The samples were analyzed isotopically to determine their composition.