Module 1: Lesson 5 ASSIGNMENT (12 marks) Lesson 5 Assignment Part 1: Molar Heat Calculations (3 marks) 1. Calculate the molar enthalpy of the NaOH(aq) using the data obtained from this experiment. Show all your work. Answer: Specific heat capacity: 4.19 J/g∙°C 50.0 ml of 1.0 mol/L NAOH Initial temperature: 23.9 °C Final temperature: 32.9 °C Change in temperature: 9 °C Q = mc∆t = (80g)(4.19 J/g∙°C)(9°C) = 3016.8 J or 3.0168 kJ ∆rH = n∆rHm 3.0168 kJ = (0.05
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Heat exhaustion and heatstroke As days slowly begin to heat up it is important to stay cool and keep hydrated across the screaming scorching sun. Summer time usually means longer days and if you live close to the equator you know about the 100+ degree weather that comes with it. Without the proper precautions you could easily fall to heat exhaustion or far worse a heat stroke. Athletes are more prone to this type of sudden illnesses because of the constant running and exercise they do on a daily
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Wastewater recycling‚treatment in industry Purpose- Industrial activity worldwide uses 22% of the roughly 3.8 billion m3 of water consumed by human activity. So industry has a great need for water but given the tensions over water and the tougher legislation‚ it cannot continue to drain all this water from our planet’s resources. This is why the recycling of wastewater has become one of its top priorities. Water is often an essential part of industrial production. In the context of an ever more
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Title: Specific Heat of Solids II. Object: To determine the specific heat capacity of solids by methods of mixtures. III. Theory: When to or more substances at different temperatures are mixed‚ heat will flow from the substance of higher temperature to the substance of lower temperature. The heat flow will continue until equilibrium in temperature is reached. From the Law of Conservation of Energy‚ whatever amount of heat is lost by the hot substance must be equal to the heat gained by the cold
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SEWAGE AND LAGOON TREATMENT What is sewage/wastewater? Wastewater is the substance that remains after humans have used water for domestic or commercial purposes. It is consists of about 99.9% water and 0.1% suspended and dissolved solids. primary wastewater treatment -primary wastewater treatment occurs in sedimentation tank‚ also called clarifier. Here‚ heavier particles settle to the bottom forming sludge. Above the sludge most of the waterwaste and on to of this is a layer of oils and
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6 report Anita Dey Thursday 8am Abstract: We recently performed a liquid nitrogen experiment in finding the Latent heat of the substance. We isolated two parts of the experiment in order to find out how much evaporation of the liquid nitrogen was from the surroundings B and how much evaporation from the electricity G. 1. When a substance is undergoing a phase transition‚ more heat (energy) is being added to the Substance but its temperature (a way of measuring its energy) is not changing. Where
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energy‚ water‚ CO2 and new cell material. Activated sludge systems are suspended-growth type and are used in conventional high-tech wastewater treatment plants to treat almost every wastewater influent such as ‚ brownwater‚ greywater‚ faecal sludge and industrial wastewater as long as it is biodegradable. PART 1: WASTEWATER TREATMENT 1. PRELIMINERY TREATMENT (Primary & Secondary Filtration) Pump station: Water from public channel network and storm water basin enters the inlet chamber. Bar Screen:
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DOTS is just about making sure that the patient is really taking in his TB regimens – like literally swallowing the medicines on schedule. It‚ however‚ is not just as simple as that. DOTS or Direct Observed Treatment‚ Short-Course is the WHO-recommended strategy for diagnosis‚ treatment and management of TB. Since TB is curable‚ the WHO believes that the best way to cure TB is through DOTS. It is a health strategy made up of five important components: Political Commitment for TB Control; Facilities
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The Ashley Treatment Ashley is a nine-year-old girl with the mental age of a three-month-old. Her condition means she will never walk‚ talk or even roll over. She is totally helpless without the devotion and care of her parents. In 2004 her parents decided to medically intervene with puberty. Along with hormone doses to limit her growth‚ Ashley ’s parents also decided on surgery to block breast growth and had her uterus and appendix removed. I am going to give the arguments for and against this
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Medicine in Sport (2008) 11‚ 6—19 REVIEW Heat stress and strain in exercise and sport John R. Brotherhood The University of Sydney‚ Exercise and Sport Science‚ Faculty of Health Sciences‚ Australia Received 3 May 2007 ; received in revised form 27 August 2007; accepted 28 August 2007 KEYWORDS Heat stress in sport; Exercise thermoregulation; Rational analysis of heat stress; WBGT; Risk assessment for exertional heat illness Summary Heat stress arising from the thermal environment is of
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