Determine How Much Energy Is Released When Thorium-230 Decays According

question 127

Multiple Choice

Determine how much energy is released when thorium-230 decays according to the following equation. (1 kg = 6.022 × 10²⁶ amu; N_A = 6.022 × 10²³ mol^-1;
C = 2.99792458 × 10⁸ m/s)

• A) 3.98 × 10⁹ kJ/mol
• B) 4.61 × 10⁸ kJ/mol
• C) 7.20 × 10¹¹ kJ/mol
• D) 4.90 × 10⁹ kJ/mol
• E) 7.15 × 10¹¹ kJ/mol

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Definitions:

Frequency

The rate at which something occurs or is repeated over a particular period of time or in a given sample.

Cycles Per Second

A measure of frequency, equivalent to the number of occurrences of a repeating event per second; also known as Hertz (Hz).

Opponent-Process Theory

Opponent-Process Theory is a psychological and neurological model explaining how the perception of colors is controlled by two opposing systems in the brain, creating a balance between excitatory and inhibitory processes.

Color Receptors

Cells in the retina (cones) that are sensitive to specific wavelengths of light, allowing for the perception of different colors.