When a solid sample was heated, its temperature increased but it did not melt. What has happenedto the average molecular kinetic energies of the atoms in the sample and why?A Kinetic energy remained the same because potential energy decreasedB Kinetic energy remained the same because potential energy increasedC Kinetic energy decreased because the temperature increasedD Kinetic energy increased because the temperature increasedA spoon, a fork, and a knife are stacked on top of each other overnight. The temperature of both thefork and spoon is 21°C the next morning. According to thermal equilibrium, what can be predictedabout the temperature of the knife?A The temperature of the knife is also 21°C because equilibrium has been reached between allthree objects.B The temperature of the knife could only be determined through measurement.C The temperature of the spoon and fork are both conducted to the knife giving it a resultingtemperature of 42°C.D The temperature of the knife would be 14°C because the knife represents roughly one third ofthe overall mass.Automatic Zoom

Temperature increased so average molecular kinetic energy also increased.

When a solid sample was heated, its temperature increased but it did not melt. What has happened to the average molecular kinetic energies of the atoms in the sample and why? A Kinetic energy remained the same because potential energy decreased B Kinetic energy remained the same because potential energy increased C Kinetic energy decreased because the temperature increased D Kinetic energy increased because the temperature increased

When a solid sample was heated, its temperature increased but it did not melt. What has happened to the average molecular kinetic energies of the atoms in the sample and why? A Kinetic energy remained the same because potential energy decreased B Kinetic energy remained the same because potential energy increased C Kinetic energy decreased because the temperature increased D Kinetic energy increased because the temperature increased

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Internal energy of a system is defined as? a) The sum of kinetic energies of all molecules of the system b) The sum of kinetic and potential energies of all molecules of the system c) The sum of potential energies of the system d) The average kinetic energy of all molecules
* Q2: - Motor energy rate for gas molecules in a thermal balance at 65 degrees temperature 0.0056 EV 0.0084 EV 0.0291 EV 00437 EV
Q9
QUESTION 16 Which of the following statements is not true according to kinetic theory? a. Electrical attractions and repulsions between the molecules must be accounted for in the total energy of the ideal gas. b. The energy of an ideal gas only depends on the kinetic energy of the gas. C. The average energy of a molecule in an ideal gas is evenly distributed between the different degrees of freedom of the molecule. d. The molecules in an ideal gas undergo elastic collisions. e. The molecules in an ideal gas only interact during collisions.
Plasma spraying is a process used to coat the surface of a material with a protective layer to prevent material degradation. In a plasma spray process, the protective coating in powder form is injected into a plasma jet. The powder is then heated until the droplets coalesce and are propelled over the surface of the material. Once deposited on the surface of the material, the molten droplets solidify and form a protective coating layer. Consider a plasma spray process using alumina (k = 30 W/m K, ρ = 3970 kg/m³ and cp = 800 J/kg K) powder that is injected into a plasma jet at T∞ = 15,000 ° C and h = 10,000 W/m²·K. Alumina powder is made up of spherical-shaped particles with a mean diameter of 60 μm and a melting point of 2300 °C.Solving, the amount of time it would take for the particles, with an initial temperature of 20 °C, to reach their melting point from the time they are injected into the plasma jet is 5,25x10 -4 s. The mathematical resolution is in the image. I only need the…
the entropy of the universe is continually decreasing constant continually increasing the same as the energy E zero
Answer it, all the information is in the screenshot Ideal gas
The energy of a container of helium gas is halved. What happens to the temperature in kelvin? a- it decreases to 1/4 its initial value b-it decreases to 1/2 its initial value c-it stays the same d-it increases to twice its initial value
In reference to the heat curve found below, which of the following statements is false? Temperature (C) Energy Goined (7) The object is gaining energy for the entire portion of the curve The object undergoes one state change in the process O The object's final temperature was higher than it's initial temperature O The object started in a solid state The object finished in a gas state
A vacuum flask contains a known amount of gas at a given temperature and pressure. If the same amount of gas is place in another container twice the volume of the vacuum flask, what happened to the resulting free energy of the gas at the same temperature and pressure? It becomes zero It remains unchanged It increases It decreases
A 0.30 kg piece of ice at 0 degrees celsius is placed in a litter of lukewarm water at 45 degrees celsius in an insulated (or adiabatic) container. Assuming no heat is lost to the container what would be the equilibrium temperature of the mixture (in degrees celsius)? Write answer in two significant figures