Calorimeter - Study guides, Class notes & Summaries

an energy imbalance results in correct answer: weight gain or weight loss energy intake is more than energy expended correct answer: positive energy balance positive energy balance results in correct answer: weight gain periods of growth for positive energy balance correct answer: pregnancy, childhood, and adolescence energy expended is more than energy intake correct answer: negative energy balance negative energy balance results in correct answer: weight loss kilocalori...

1. Question: Calculate the lattice energy of NaBr(s), given the following thermochemical equations, where ΔIE and ΔEA are ionization energy and electron affinity, respectively. 2. Question: In which case is the bond polarity incorrect? 3. Question: The phosphorus atom in PCl3 would be expected to have a 4. Question: Which of the following bonds would be the most polar without being considered ionic? 5. Question: Calculate the standard enthalpy of formation (ΔHformation) for LiCl(s) given ...

Energy Balance correct answers When energy consumed equals energy expended; Body weight is stable; the energy (kcalories) consumed from foods and beverages compared with the energy expended through metabolic processes and physical activities Bomb Calorimeter correct answers Tool used to estimate the potential energy of foods by measuring the heat energy released when foods are burned; Measures the energy available from foods; an instrument that measures the heat energy released when foods are...

C125 EXAM-QUESTIONS WITH CORRECT ANSWERS 3.Write a balanced chemical equation noting all species and states of matter 4.Break up any aqueous compound into its ions to write the total ionic equation (including states of matter) 5.Cancel out any spectator ions 6.Write the remaining species as the net ionic equation Endothermic - Answer- - Absorbs heat from the surroundings - Becomes colder; requiring a gain of energy Exothermic - Answer- - Releases energy to it surroundings ...

Chemistry Straighterline with latest updated test and detailed solutions. An endothermic reaction causes the surroundings to: A. warm up B. become acidic C. condense D. decrease in temperature E. release CO2 - correct answer.D An exothermic reaction causes the surroundings to: A. warm up B. become acidic C. expand D. decrease its temperature E. release CO2 - correct answer.A Copper metal has a specific heat of 0.385 J/g•oC and has a melting ...

ANSC 3305 Final Calorimeter - ANSWER-determines gross energy/heat of combustion, determined calories in food/burn food inside a highly pressured container surrounded by water and figure out how much it heats up with water Animal Production Stages Requirements - ANSWER-net efficiencies for maintenance and production are not equal - maintenance, growth, lactation, for chickens laying, gestation NRC - ANSWER-National Research council; book values are better for animal requirements than for ...

1. Question: A sample of oxygen gas has a volume of 3.52 L at 27°C and 800.0 torr. How many oxygen molecules does it contain? 2. Question: Consider a sample of gas in a container on a comfortable spring day. The Celsius temperature suddenly doubles, and you transfer the gas to a container with twice the volume of the first container. If the original pressure was 12 atm, what is a good estimate for the new pressure? 3. Question: Gas A and gas B are combined in a flask at initial pressures of 1...

A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. The Htotal heat capacity of the calorimeter plus water was 5760 J/oC. If the temperature rise of the calorimeter with water was 0.570oC, calculate the enthalpy of combustion of magnesium. Mg(s) + 1/2O2(g) MgO(s) A. ─3280 kJ/mol B. ─24.8 kJ/mol C. 435 kJ/mol D. 106 kJ/mol E. ─602 kJ/mol - ANSWER E

Vocabulary: calorie, calorimeter, joule, specific heat capacity Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. The Latin word calor means “heat,” and meter comes from the Greek word meaning “to measure.” What do you think a calorimeter does? to measure heat 2. Where have you heard the word calorie before? What do you think a calorie is? _when looking at the nutritional facts on the back of a_food container

Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) Which example is an exothermic reaction? - ANSWER - condensation Two objects (A and B) of the same temperature are in contact with each other. Which statement is true? - ANSWER - Although the molecules collide, no heat transfers because there is no temperature difference b...