Boiling point trends Study guides, Class notes & Summaries

temperature is related to KE how? temp is the average kinetic energy thermal energy is related to KE how? thermal energy is the total KE Brainpower enthalpy of fusion is ALWAYS greater than enthalpy of vaporization because? it has to break more bonds (solid --> liquid) the amount of heat depends on (2 factors) 1. the type of substance 2. the amount of the substance during a phase change does temperature change? NO if an archaebacerial species lives in a pool that is 0.01 M HCL wh...

Intermolecular forces - ANSWER- non bonding forces - found BETWEEN molecules - influence the energy physical properties of the substances Physical properties examples - ANSWERboiling point, melting point, solubility, color, odor, etc. T/F: stronger intermolecular forces correlate to a higher boiling point - ANSWERTrue Kinetic energy - ANSWER- provides the energy needed to overcome intermolecular forces What is kinetic energy associated with? - ANSWERThe random motion of particles...

Chem 210 Exam 1 Questions & Answers(Graded A+) Intermolecular forces - ANSWER- non bonding forces - found BETWEEN molecules - influence the energy physical properties of the substances Physical properties examples - ANSWERboiling point, melting point, solubility, color, odor, etc. T/F: stronger intermolecular forces correlate to a higher boiling point - ANSWERTrue Kinetic energy - ANSWER- provides the energy needed to overcome intermolecular forces What is kinetic energy ass...

Intermolecular forces - ANSWER- non bonding forces - found BETWEEN molecules - influence the energy physical properties of the substances Physical properties examples - ANSWERboiling point, melting point, solubility, color, odor, etc. T/F: stronger intermolecular forces correlate to a higher boiling point - ANSWERTrue Kinetic energy - ANSWER- provides the energy needed to overcome intermolecular forces What is kinetic energy associated with? - ANSWERThe random motion of particles...

Molarity moles of solute/liters of solution mole fraction moles of A/total moles solute + moles solvent mass percentage mass of solute/mass of solution x 100% mass of solution solute+solvent ppm mass of solute/mass of solution x 10^6 ppb mass of solute/mass of solution x 10^9 volume percentage vol of component/total volume x 100 molality moles of solute/kg of solvent ** denominator does not include mass of solute Ionization Energy The amount of...

Chapter 03: Patient Safety, Communication, and Record Keeping Test Bank MULTIPLE CHOICE 1. Which of the following is/are a potential area of risk to patients receiving respiratory care? a. movement or ambulation b. electrical shock c. fire hazards d. all the above ANS: C The key areas of potential risk are (1) patient movement and ambulation, (2) electrical hazards, and (3) fire hazards. DIF: Recall REF: p. 42 OBJ: 2| 3 2. Lifting heavy objects is best done with whic...

AQA GCSE Chemistry - Paper 1 What is the charge of a proton? Ans- +1 What is the charge of a neutron? Ans- 0 What is the charge of an electron? Ans- -1 What is the relative mass of a proton? Ans- 1 What is the relative mass of a neutron? Ans- 1 What is the relative mass of an electron? Ans- Very small How many types of atoms do elements contain? Ans- Only one type What are compounds? Ans- Substances containing two or more different elements that are chemically bonded together What are...

Topic 1 - Atoms, Electrons and Periodicity This topic covers 1.1.1 Atoms, 1.2.1 Electron Structure and 1.3.1 Periodicity (except melting and boiling point trends)

ACS Chemistry Final Exam 182 Questions with Verified Answers Layout of an element (mass # & atomic #) - CORRECT ANSWER atomic number = - CORRECT ANSWER # of protons mass number = - CORRECT ANSWER # of protons + neutrons the number of protons in a neutral atom will equal the - CORRECT ANSWER # of electrons how to find the correct number of neutrons - CORRECT ANSWER mass number - atomic number Forms of the same elements that differ in amount of neutrons - CORRECT ANSWER isotopes...

ATI TEAS 7 Exam Test Bank 300 Questions with Answers 100% VERIFIED 1. How are carbohydrates used by the body? Choose ALL answers that apply. • structure • Communication • storage • Recognition 2. What type of immunity does a vaccine provide? Choose only ONE best answer. • naturally acquired passive immunity • Artificially acquired passive immunity • Naturally acquired active immunity • Artificially acquired active immunity 3. Which organs and/or glands are superior t...