BTEC Level 1/2 Unit 5: Applications of Chemical Substances assessment answers

Course: Pearson BTEC Level 1/Level 2

Assessment: Internal

Applications of Chemical Substances Unit covers a wide range of topics relating to the use of chemicals in industry and science. The unit explores the principles behind the use of substances in a variety of contexts, including their reactivity, safety issues, and environmental impact. Students will develop an understanding of how chemicals are used in different industries, and how they can be utilized safely and effectively. The unit also covers the principles of green chemistry, which is increasingly important in today’s world.

This course will give students the skills and knowledge they need to work safely and effectively with chemical substances. They will learn about the principles of green chemistry, and how to apply these principles in the industry. Students will also be able to identify and assess the risks associated with working with chemicals and will develop strategies for minimizing these risks. The course will also cover the legal requirements for working with chemicals, and how to comply with these requirements.

Get Internal Assessment Answers for Applications of Chemical Substances Unit

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In this section, we are describing some tasks. Some of the following:

Assessment Task 1: Investigate and understand enthalpy changes associated with chemical reactions.

Enthalpy changes are incredibly important to chemical reactions, as they help determine the amount of heat that is either absorbed or released during a reaction. This, in turn, can help chemists control the rates and products of reactions. To calculate enthalpy changes, we need to use the Heat of Reaction equation: ΔH = Σ products (ΔHf) – Σ reactants (ΔHf). The term “ΔH” represents the change in enthalpy, while the terms within the parentheses represent the individual enthalpy changes for each product and reactant. 

To investigate enthalpy changes associated with chemical reactions, we can first look at how those changes might be affected by temperature. We know that as the temperature of a system increases, the average kinetic energy of its particles also increases. This increase in kinetic energy can lead to an increase in the rate of chemical reactions, as more collisions between reactant particles will have enough energy to overcome the activation energy barrier.

In addition, higher temperatures can also cause changes in the physical state of a substance, which can lead to changes in the enthalpy of a reaction. For example, when a solid reactant is heated, it may melt and become a liquid. This change in state will result in a change in enthalpy.

Next, we need to consider how the nature of the reactants and products might affect the enthalpy of a reaction. We know that the more stable a substance is, the lower its entropy. Substances that are less stable tend to have higher entropies. Therefore, when we look at the enthalpy of a reaction, we need to consider not only the products but also the reactants.

The more unstable the reactants are, the higher the enthalpy of the reaction will be. In addition, we need to consider the nature of the products. If a reaction produces more stable products than reactants, the overall enthalpy of the reaction will be negative.

Finally, we need to think about how Catalyst can affect Enthalpy changes. A catalyst is a substance that increases the rate of a chemical reaction without being consumed by the reaction. Catalysts work by providing an alternative pathway for the reaction to proceed that has lower activation energy than the uncatalyzed reaction. This means that more collisions between reactant particles will have enough energy to overcome the activation energy barrier and result in a reaction.

In addition, catalysts can also change the enthalpy of a reaction by changing the way in which the reactants interact with each other. For example, a catalyst might cause the reactants to bond more strongly to each other, which would result in a higher enthalpy of reaction.

Assessment Task 2: Investigate organic compounds used in society.

Organic compounds are essential to life as we know it. In fact, all of the compounds in our bodies are organic. The study of organic chemistry is therefore vital to understanding how living things work.

There are countless organic compounds used in society, both natural and synthesized. Key examples include DNA, carbohydrates, fats, enzymes, and vitamins. Natural sources of these molecules include plants, animals, and minerals. Synthetic sources include factories and chemical plants.

Organic chemistry is a complex field that is constantly evolving. New discoveries are made all the time about the structure and function of these important molecules. With each new discovery, we gain a better understanding of how life works and how we can harness the power of organic compounds to improve our lives.

Organic compounds are essential to life as we know it. In fact, all of the compounds in our bodies are organic. The study of organic chemistry is therefore vital to understanding how living things work.

Assessment Task 3: Explore the uses of nano chemicals and new materials.

Nano chemicals and new materials are being explored for a variety of uses, including in energy production, pollution control, and health care. For example, nano titanium dioxide is being studied for use in solar energy panels. It is very efficient at converting sunlight into electrical energy and can be used to create thin-film solar cells.

Additionally, nanomaterials are being studied for use in cleaning up environmental pollutants. For example, carbon nanotubes have been shown to be effective at removing oil from water surfaces. And finally, nanomaterials are being studied for use in various medical applications, such as drug delivery and cancer treatment.

Nano chemicals and new materials hold great promise for a variety of applications. As research in this area continues, we are likely to see even more amazing and life-changing uses for these materials.

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