Part I: 1. Calculate the energy change (q) of the surroundings (water) using the enthalpy equation qwater = m × c × ΔT. We can assume that the specific heat capacity of water is 4.18 J / (g × °C) and the density of water is 1.00 g/mL. qwater = m × c × ΔT m = mass of water = density x volume = 1 x 26 = 26 grams ΔT = T(mix) - T(water) = 38.9 - 25.3 = 13.6 q(water) = 26 x 13.6 x 4.18 q(water) = 1478 Joules SPECIFIC HEAT: qmetal = -205 J = 15.363 g X c X (27.2 - 100.3 C) c
Premium Heat Energy Thermodynamics
Size of hydrocarbon molecules inc‚ f.o.a inc‚ more heat overcome f.o.a * Density Mass per molecule inc faster than volume per molecule * Gas – liquidSize of hydrocarbon molecule inc‚ f.o.a stronger‚ mp&bp inc * Insoluble in water‚ soluble in organic solvent(covalent comp) * Insulator * Less dense than water | * MP & BP Size of hydrocarbon molecules inc‚ f.o.a inc‚ more heat overcome f.o.a * Density mass per molecule inc faster than volume per molecule * Gas – liquidSize of
Premium Density Oxygen Temperature
method would consistently test the foam and ensure it has the correct density? Background: There are words that need to be understood before executing the experiment. The first thing you need to know is density. Density is a measure of mass per unit of volume. The reason for testing density of doors because doors must contain a density of 14.34lbs per ft3 of foam‚ or it will collapse if the density is too high. If the density is too low‚ it won’t allow for normal expansion during weather changes
Premium Density Volume Water
experiment concerning Archimedes’ Principle to determine the density of solids and liquids using Archimedes’ Principle. For the density of solids‚ they had made use of spring balance to measure the mass of the metal samples‚ which were tied via string‚ in air and when immersed inside a 2000mL beaker‚ where H2O lies. They had computed the density of each sample metal using the formula: ϱs = maϱw / ma - mw and computed a percentage error. As for the density of liquids‚ they had filled a graduated cylinder with
Premium Density Water
Part I: Density of Unknown Liquid Calculate the mass of the liquid for each trial. (Subtract the mass of the empty graduated cylinder from the mass of the graduated cylinder with liquid.) Trial 1: Empty graduated cylinder is 25.5 subtracted from 36.5 of the liquid and the cylinder combined equals 11 grams of liquid. Trial 2: 36 grams of water and liquid combined minus the 25.5 of the empty cylinder means equals 10.5 grams of liquid only. Trial 3: Again 36 grams of liquid and the empty cylinder
Premium Volume Density Length
Analysis of Plant Data 1 B. Simulation of Surge Tank 2 i. Modelling the Surge Tank in Xcos 2 ii. Frequency Fluctuations in Density Data 5 iii. Testing of Model for the Product Density 6 iv. Comparison of Unconstrained and Constrained Output Volume of the Surge Tank 7 C. Control of Surge Tank 8 i. Implementation of Controllers 8 Product Flow Fluctuation 10 Product Density Fluctuation 10 Height Fluctuation 11 ii. Effect of Tightening Limits and Reducing Tank Size 11 References 13 Appendix
Premium Control theory Volumetric flow rate Density
“Is Density An Intensive Property Of Matter?” By: Mikal Hayden - Gates A. Introduction The first unit we learned in chemistry was Alchemy. In this unit I learned about the extensive and intensive properties of matter. An extensive property is a property of matter that depends on the changes of the substances shape or amount. An intensive property is a property of matter that doesn’t depend on the substances shape or amount. The purpose of this investigation was to prove that density is
Premium Specific heat capacity Temperature Density
T-score of -1‚ meaning Ms Fredrick’s bone density is that of osteopenia. This means that Ms Fredrick’s body is at risk of forming osteoporosis. Ms Fredrick can stop this from happening by quitting smoking‚ eating healthy‚ exercising and considering Hormone Replacement Therapy. As a menopausal woman Ms Fredrick is going through a hormone imbalance. During the menopause the endocrine system produces less of the hormone oestrogen which is important in healthy bone growth (Shaw L 2005). Ms Fredrick is
Premium Osteoporosis Bone Vitamin D
the gym. As we start to avoid favorable activities‚ our muscles grow weak and shrink in size. The lack of physical activity not only takes its toll on our muscles‚ but to our bones as well. Wolff’s law states that the bone density changes in response to the changes in the functional forces on the bone. In mature bones‚ the bone elements place or displace themselves‚ and decrease or increase their mass‚ in response the mechanical demands imposed on them
Premium Muscle Death Bone
Cydney Kessler Date of Experiment June 13‚ 2015 Report Submitted: June 15‚ 2015 Title: Laboratory Techniques and Measurements Purpose: In this experiment I will determine the mass‚ density‚ volume‚ lengths and temperatures of different objects and liquids to help me better understand the importance of Chemistry and how Chemistry plays a big role in our everyday lives. Procedure: In the experiment‚ I use devices such as a ruler‚ beakers‚ flasks‚ a scale and cylinders
Premium Volume Water Density