The Rate Constant for a First Order Reaction Has the Value

question 16

Multiple Choice

The rate constant for a first order reaction has the value of 1.25×10^-3s^-1. If the initial concentration of reactant is 2.5 mol·L^-1, what will be the molar concentration of the reactant after 5 minutes?

• A) 2.31
• B) 1.72
• C) 2.49
• D) 0.78
• E) none of the above

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Definitions:

Embryonic Development

The process by which an embryo forms and develops, initiating from a single cell and resulting in a fully formed organism through cellular division, differentiation, and morphogenesis.

Three-Layered Embryo

Also known as the gastrula, it refers to an early stage in embryonic development where the embryo consists of three primary layers: ectoderm, mesoderm, and endoderm.

Organogenesis

The phase during embryonic development when the ectoderm, endoderm, and mesoderm develop into the internal organs of the organism.

Embryonic Development

The process by which the embryo forms and develops, starting from a single cell and leading to a complex, multi-cellular organism.