What is the main reason why a solute can sublimate before it melts? Sublimation is caused by the absorption of heat which provides enough energy for some molecules to overcome the attractive forces of their neighbors and escape into the vapor phase. Since the process requires additional energy, it is an endothermic change. What are […]
What is the best way to manage your time?
What is the best way to manage your time? List of Tips for Effective Time Management Set goals correctly. Set goals that are achievable and measurable. Prioritize wisely. Prioritize tasks based on importance and urgency. Set a time limit to complete a task. Take a break between tasks. Organize yourself. Remove non-essential tasks/activities. Plan ahead. […]
What is surface tension in chemistry definition?
What is surface tension in chemistry definition? Surface tension is a fundamental property of the surface of liquid. Surface tension is responsible for the curvature of the surfaces of air and liquids. Surface tension is responsible for the ability of some solid objects to “float” on the surface of a liquid. What is surface tension […]
How are fields quantized?
How are fields quantized? The quantization of the electromagnetic field, means that an electromagnetic field consists of discrete energy parcels, photons. In Dirac’s theory the fields are quantized for the first time and it is also the first time that Planck’s constant enters the expressions. Is force quantized? Thus, forces themselves are quantized, meaning that […]
How does oil spills affect the economy?
How does oil spills affect the economy? Oil spills can cause serious damage to fisheries and mariculture resources. Physical contamination can affect stocks and disrupt business activities by fouling gear or impeding access to fishing sites. What are the negative impacts of oil spills? Most oil spills are the result of accidents at oil wells […]
What is K in law of cooling?
What is K in law of cooling? Newton’s Law of Cooling states that the rate of temperature of the body is proportional to the difference between the temperature of the body and that of the surrounding medium. The constant ‘k’ depends upon the surface properties of the material being cooled. What is Newton’s law of […]
Are sound waves visible?
Are sound waves visible? Sound is a vibration, or wave, that travels through the air. Sound waves are invisible to our eyes; unless we find a way to make the sound waves move something that we can see. In this activity, your child will use different noise-making objects to cause sound waves and make sand […]
Why is the movement of plates important to Canada?
Why is the movement of plates important to Canada? Canada rides on one of 30 or so tectonic plates, or slabs, which underlie the earth’s continents and oceans. Canada’s west coast is situated in one of the world’s most active collision zones, where the westbound North American plate overrides the Pacific plate. … Where in […]
How do environmental changes affect both living and nonliving things in a watershed What conclusions can you make based on your observations?
How do environmental changes affect both living and nonliving things in a watershed What conclusions can you make based on your observations? Based on my observations, I can conclude that biotic and abiotic factors are closely linked and that human activity that changes the environment, like pollution, can affect all the other parts of an […]
What is direct change over?
What is direct change over? Direct changeover is the implementation of a new facility, system, process, product or procedure at a point in time. The term implies a major change that is launched all at once as opposed to a more conservative approach such as a phased implementation or parallel run. What are the first […]