The Radioactive Isotope Tritium Decays with a First-Order Rate Constant

question 74

Multiple Choice

The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year^-1. What fraction of the tritium initially in a sample is still present 30 years later?

• A) 0.19
• B) 0.60
• C) 0.15
• D) 2.8 × 10^-38
• E) none of the above

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Definitions:

Mediascapes

Refers to the global cultural flows of media and information that shape the perceptions and experiences of local and individual realities.

Arjun Appadurai

A contemporary social-theoretical thinker known for his work on globalization, focusing on the cultural dimensions of global economic flows.

Cultural Hybrids

denotes the blending of elements from different cultures, creating new cultural forms, practices, or identities.

Ideoscapes

Coined by Arjun Appadurai, referring to the global flow of ideas, ideologies, and images that shape political and ideological movements.