The Rate Constant for a First-Order Reaction Is 2

question 37

Multiple Choice

The rate constant for a first-order reaction is 2.4 × 10^-4 L/(mol·s) at 600 K and 6.2 × 10^-4 L/(mol · s) at 900 K.Calculate the activation energy.(R = 8.31 J/(mol · K) )

• A)​2.55 × 10⁴ J/mol
• B)1.42 × 10² J/mol
• C)1.42 × 10⁴ J/mol
• D)​1.04 × 10³ J/mol
• E)​0.88 × 10⁴ J/mol

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Definitions:

Neuron

Morphologic and functional unit of the nervous system, consisting of the nerve cell body, the dendrites, and the axon; also called nerve cell.

Synaptic Vesicles

Small organelles within neurons that store and release neurotransmitters at the synapse.

Neurotransmitters

Chemicals released by neurons to transmit signals across a synaptic gap to a target cell.

Presynaptic Terminals

The ends of axons where neurotransmitters are stored before being released into the synaptic cleft in response to a nerve impulse.