Math 286 · Exam 2 Solutions · Fall 2012 · Dr. Greene
... 6. State a 2nd-order homogeneous differential equation for which the functions {x4 , −x4 } are solutions on the interval (0, 2). Find the general solution of your differential equation. (5 points) Solution: Letting y = x4 gives y 0 = 4x3 and y 00 = 12x2 . Since 12x4 − 12x4 = 0, y = x4 is a solution ...
... 6. State a 2nd-order homogeneous differential equation for which the functions {x4 , −x4 } are solutions on the interval (0, 2). Find the general solution of your differential equation. (5 points) Solution: Letting y = x4 gives y 0 = 4x3 and y 00 = 12x2 . Since 12x4 − 12x4 = 0, y = x4 is a solution ...
CHM112 Lab – Heat of Neutralization – Grading Rubric
... Followed procedure correctly without depending too much on instructor or lab partner ...
... Followed procedure correctly without depending too much on instructor or lab partner ...
Enthalpy of Neutralization
... In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure and ignoring any work done by the reacting system. If the reaction is exothermic, heat is given off and ...
... In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure and ignoring any work done by the reacting system. If the reaction is exothermic, heat is given off and ...
Honors Chemistry Quiz Chapter 6: Thermochemistry - Doc-U-Ment
... 5) Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? A) 10.0 g Ag, CAg = 0.235 J/g°C B) 10.0 g H2O, CH2O = 4.18 J/g°C C) 10.0 g ethanol, Cethanol = 2.42 J/g°C D) 10.0 g Fe, CFe = 0.449 J/g°C E) 10.0 g ...
... 5) Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? A) 10.0 g Ag, CAg = 0.235 J/g°C B) 10.0 g H2O, CH2O = 4.18 J/g°C C) 10.0 g ethanol, Cethanol = 2.42 J/g°C D) 10.0 g Fe, CFe = 0.449 J/g°C E) 10.0 g ...
Heat, Enthalpy, Temperature
... endothermic) but generally, substances do not HAVE heat. A substance loses or gains heat because of a temperature difference. Energy will flow in a way that evens out the difference. The energy lost by one system will be equal to the amount of energy gained by another system. ENERGY LOST = ENERG ...
... endothermic) but generally, substances do not HAVE heat. A substance loses or gains heat because of a temperature difference. Energy will flow in a way that evens out the difference. The energy lost by one system will be equal to the amount of energy gained by another system. ENERGY LOST = ENERG ...
algebra - BrainMass
... State all answers in standard equation format, interval notation, or solution set notation unless otherwise instructed by the problem statement. Also, show the stepby-step process you used to solve the problems. ...
... State all answers in standard equation format, interval notation, or solution set notation unless otherwise instructed by the problem statement. Also, show the stepby-step process you used to solve the problems. ...
Chapter 15 – Section 2 Heat
... Heat and Thermal Energy • Heat is the transfer of thermal energy from one object to another when the objects are at different temperatures. • The amount of heat that is transferred when two objects are brought into contact depends on the difference in temperature between the objects. ...
... Heat and Thermal Energy • Heat is the transfer of thermal energy from one object to another when the objects are at different temperatures. • The amount of heat that is transferred when two objects are brought into contact depends on the difference in temperature between the objects. ...
4.5 THERMAL ENERGY AND HEAT . PRACTICE
... (b) The water has far greater thermal energy. Not only is it at a greater temperature; there is also far more of it. (c) Heat will eventually stop transferring from the water to the milk when both are at the same temperature. At this point, all the molecules will have the same average kinetic energy ...
... (b) The water has far greater thermal energy. Not only is it at a greater temperature; there is also far more of it. (c) Heat will eventually stop transferring from the water to the milk when both are at the same temperature. At this point, all the molecules will have the same average kinetic energy ...
Chapter 9 Partial Differential Equations
... of [◦ C]. Assume the cross sectional area A of the rod is constant and consider an element of volume dτ = A ∆x located between the positions x and x + ∆x in the rod as illustrated. We assume the rod is of a homogeneous material and the surface of the rod is insulated so that heat ßows only in the x- ...
... of [◦ C]. Assume the cross sectional area A of the rod is constant and consider an element of volume dτ = A ∆x located between the positions x and x + ∆x in the rod as illustrated. We assume the rod is of a homogeneous material and the surface of the rod is insulated so that heat ßows only in the x- ...
Specific Heat and Calculating Heat Absorbed - Varga
... The specific heat of concrete is 0.84 J/g°C, whereas the specific heat of water 4.184 J/g°C. If you have 1 kg of each substance at 0°C, which of them will take more energy to raise to a temperature of 50°C? ...
... The specific heat of concrete is 0.84 J/g°C, whereas the specific heat of water 4.184 J/g°C. If you have 1 kg of each substance at 0°C, which of them will take more energy to raise to a temperature of 50°C? ...
ENT 211 Tutorial Week 1
... What is the driving force for HT, EC and FF? The driving force for heat transfer is the temperature difference. (b) The driving force for electric current flow is the electric potential difference (voltage). (a) The driving force for fluid flow is the pressure difference. ...
... What is the driving force for HT, EC and FF? The driving force for heat transfer is the temperature difference. (b) The driving force for electric current flow is the electric potential difference (voltage). (a) The driving force for fluid flow is the pressure difference. ...
Heat equation
The heat equation is a parabolic partial differential equation that describes the distribution of heat (or variation in temperature) in a given region over time.