Segments in this Video

Kinetics and Nuclear Chemistry: Activation Energy (03:52)

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Chemists increase molecules to speed up reactions. Reactive chemicals require energy to break old bonds and reach a temporary state of higher energy. View a demonstration of hydrogen and chlorine gases reacting with ultraviolet light energy.

Catalysts (01:02)

Creating alternative pathways can speed up reactions with less energy. Once the reaction is over, the catalyst returns to its original state and can be reused.

Elephant's Toothpaste (03:49)

View a demonstration of using potassium iodide as a catalyst to decompose hydrogen peroxide into water and oxygen gas. Dish detergent makes it foam dramatically.

Molecular Architects (02:11)

Researchers have designed a set of catalysts that can efficiently make alcohols and amines—building blocks for drug treatments. Valine forms the base.

Enantiomers (05:21)

Catalysts must be selective in products they create. Learn about the molecular "handedness" mirror image concept. Valine selects the correct product enantiomer. Researchers believe it works by using a proton to attract molecules and releasing the product after reaction.

Radioactivity (02:09)

Some reactions proceed at a constant rate. Atom stability is determined by the proton to neutron ratio. Element decay rate is expressed in half-lives.

PET Scans (03:58)

Radioactive material helps detect cancer by revealing the body's highest metabolism areas. Unstable isotopes emit positrons that collide with electrons and create photons detected on the scanner. Hear how cyclotrons produce Flourine-18, which has a 2 hour half-life.

Radioactive Imaging (03:20)

Glucose is attached to Flourine-18 to highlight tumors on PET scans. Doctors use them to diagnose cancer and evaluate treatment effectiveness. Understanding reaction rates helps chemists manipulate matter.

Credits: Kinetics and Nuclear Chemistry: Chemistry: Challenges and Solutions (00:30)

Credits: Kinetics and Nuclear Chemistry: Chemistry: Challenges and Solutions

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Kinetics and Nuclear Chemistry: Chemistry: Challenges and Solutions

Part of the Series : Chemistry: Challenges and Solutions
3-Year Streaming Price: $149.95

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Description

From an instantaneous explosion to the slow rusting of iron, the rates at which different chemical reactions proceed can vary tremendously depending temperature and concentration. Chemists want to slow down or speed up reaction rates. One way to do this is to use a catalyst. In this video, we will learn about catalysts and how using them can lead to cheaper, more effective drug production processes.

Length: 28 minutes

Item#: BVL110259

Copyright date: ©2014

Closed Captioned

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Not available to Home Video, Dealer and Publisher customers.


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