surface temperature would be 7100 K. This temperature would equal 6827 C. b) Light bulbs operate at 2500 degrees C. i) What is the wavelength at which the most power is emitted for a light bulb operating at 2500 C? -2500 C to Kelvin = 2773 K‚ peak power = 1050 nm ii) Explain why regular incandescent bulbs waste a lot of energy. Be sure to include your reasoning. - Less than 15% of energy is used to produce visible light. With that being said‚ most of the
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The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules)‚ all of which are in constant‚ random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic properties of gases‚ such as pressure‚ temperature‚ or volume‚ by considering their molecular composition and motion. Essentially‚ the theory posits that pressure is due not to static repulsion between molecules‚ as
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1) Calculate the value of the gas law constant R when pressure is in atm‚ volume in Liter and temperature in Kelvin. Given R = 8.314 Jmol‐1K‐1‚ 1 atm = 1 .01325x105 Nm‐2‚ 1m3 = 1000 L J R = 8.314 mol x K = R = 8.314 2 m x mol x K R = 0.082 atm x L mol x K 1.01325 x 10 2 m x mol x K 1 x Nxm = mol x K 3 Nxm 3 Nxm 5 atm Nm-2 x 1000 L 3 m Reporting computed data • Multiplication and Division 5.02 x 89.665 x 0.10 = 45
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The big bang happened 14 billion years ago when the universe was nothing but a small particle. The big bang was a big explosion which now we call the universe‚ it expanded quickly throughout the years. About 300‚000 years went by and that’s when the universe started to cool down. There was two types of particles at that point matter and antimatter when they were close to each other they would destroy each other. The universe started to filled with hydrogen and helium gas. Scientists never discovered
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gov/aboutnci/servingpeople/WhyItIsImportant/Slide2 • Kleinsmith‚ L.J‚ Kerrigan‚ D‚ Kelly‚ J and Hollen‚ B (2004‚ September). Understanding Cancer and Related Topics. Slides 3-8. Retrieved August 12‚ 2008‚ from http://www.cancer.gov/cancertopics/understandingcancer/cancer/Slide1 • Kelvin J‚ F. and Tyson L‚ B. (2004). 100 Questions & Answers about Cancer Symptoms and Cancer Treatment Side Effects. • World Health Organization. (2008). Screening and Early Detection of Cancer. Retrieved August 12‚ 2008‚ from Http://www.who.int/cancer/detection/en/
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Chemical Thermodynamics Chapter 19 Lecture Worksheet Homework: 19.29‚ 19.31‚ 19.37‚ 19.39‚ 19.41‚ 19.43‚ 19.47‚ 19.51‚ 19.53a‚ 19.55‚ 19.61‚ 19.73‚ 19.75‚ 19.77 Recall from Chapter 5 - 1st Law of Thermodynamics o Energy is neither ____________________________________________. o Energy of the universe is constant. o Enthalpy Change ▪ Heat energy transferred at _____________________________________ ▪ Negative
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Lab #7: Thermal Energy Heat is thermal energy being transferred from one place to another‚ because of temperature changes. This can take place by three processes. These three processes are known as conduction‚ convection‚ and radiation. When we place two objects with different temperatures in contact with each other‚ the heat from the hotter object will immediately and automatically flow to the colder object. This is known as conduction. Some objects make excellent conductors of heat while
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Kelvin Kublall Feb‚ 4/2013 History of Christianity Confessions of St. Patrick St. Patricks story is a quite dramatized one‚ it speaks about the great things he has passed through. St. Patrick was one of the first and most influential missionaries to Ireland‚ bravely entering this superstitious and violent country to bring the healing balm of the gospel. Firstly He was born in Great Britain nearing the end of the fourth century. He was the son of Calpornius‚ who was a deacon and decurion. Patrick
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Allocate Resources and Develop Budgets The resource allocation and budgeting process is one of the most powerful stages of planning. Resource allocation refers to the distribution of resources‚ and in particular finance‚ from the center to peripheral (outer) levels. Budgeting implies the more detailed determination of precisely how these funds are to be used. - Managers allocate resources to carry out the plan such as o Money o People o Materials o Equipment and o Time - Sales budget is
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Use the postulates of the kinetic theory to explain the following: i)Matter can exist in three states ii)The pressure exerted by a confined gas decreases as its temperature is lowered iii)A gas of low molecular mass will diffuse through air faster than a gas of high molecular masseven though both are at same temperature. The Kinetic Theory can be used to describe the three physical states of matter namely‚ solid‚ liquid and gas. In this theory‚ some basic assumptions has to be made: a) all matter
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