What Is the Boiling Temperature of a Single Water Molecule

question 18

Multiple Choice

What is the boiling temperature of a single water molecule? Does this question make sense?

• A)Boiling involves the separation of many molecules (plural). With only one molecule, the concept of boiling is meaningless.
• B)Yes, this question does make sense because temperature measures the average kinetic energy of a molecule, which is 100°C for water.
• C)100°C indicates when the covalent bonds of the water molecule has been broken to give rise to hydrogen and oxygen atoms which are released into atmosphere.
• D)No, this question does not make sense because you need at least two molecules to get the average kinetic energy.

Describe the primary and secondary immune responses and their differences.

Understand the structure and function of major histocompatibility complex (MHC) and its role in immunity.

Illustrate the role and types of antibodies in the immune response.

Clarify the significance of antigen presenting cells and lymphocyte activation.