Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 19.6 atm . What would the molar concentration of the tree sap have to be to achieve this pressure on a day when the temperature is 26 ∘C ?
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper...
4. A solution is prepared by combining 15.00 g of ethylene glycol with 135.00 g water. These liquids are “miscible” in each other (what does this mean?) The van’t Hoff factor for ethylene glycol is 1.0 What is the effect on the following properties of the solution compared to the pure solvent, water? Boiling point higher, lower, the same Freezing point higher, lower, the same Vapor pressure higher, lower, the same 5. Tree sap can be a very concentrated solution...
1. Which of the following is not considered a nutrient a Vitamin B. Water c.Carbohydrate (d) Alcohol e Mineral 2. For which of the following causes of death does a person's diet play a part? a. Lung disease (6) Cancer Chronic lower respiratory diseases d. Infections of the blood e AIDS 3. Researchers repeatedly report that people who consume a variety of foods such as fruits, vegetables, legumes, nuts, and whole grains have reduced risks of which of the following...
Multiple-Choice Questions (worth two points each) 1. Which of the following describes the process in which one adopts patterns of behavior that lead to greater life satisfaction? A. wellness B. health C. social determination D. self-efficacy 2. The Stages of Change Model of health behavior change emphasizes that A. change happens as a process. B. people change only when faced with an illness. C. change occurs only when the environment supports it. D. changes are more effective when based on...
How can we assess whether a project is a success or a failure? This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...