When significant amount of heat is removed from liquid, the liquid will change from liquid to solid. What energy has decreased in liquid?
a) Work energy
b) Potential energy
c) Kinetic energy
d) Internal energy?
When significant amount of heat is removed from liquid, the liquid will change from liquid to...
1. Heat is best defined as a. massless substance emitted when something burns. b. a form of potential energy. c. a form of work. d. the total energy that a substance has. e. energy transferred as the result of a temperature difference. 2. The energy stored in chemical bonds is a form of a. kinetic energy. d. heat. b. thermal energy. e. mechanical energy. c. potential energy. 3. Energy that an object has by virtue of its motion is called...
Suppose you transfer a certain amount of heat energy to a known amount of a liquid in a perfectly insulated cup and the temperature changes. Then, you decide to alter the experiment in several different ways. Match the alterations listed below with the best description of the total change in temperature compared to that measured in the original experiment (before the alteration): - A Transfer more heat energy A. The total change in temperature will be smaller. - A Heat...
A heat engine has an efficiency of 0.25 when it receives 250 J of heat. The amount of heat exhausted by the engine is A 190 B. 250 COJ D. 63) E None of the above. B During an isothermal process involving an ideal gas, 150 J of heat is removed from the system. The change in the internal energy of the gas is A 150J BOJ C 150J D. Unknown; not enough information is given to answer the question....
What amount of heat energy , in joules , must be removed to condensed 13.4g of water vapor at 122.5C to liquid at 23.1C ?
(5) Freeze-drying occurs when vapor (and thus heat) is removed from a liquid. Assuming the vapor pressure of H20 remains constant as it cools, estimate the mass of ice that will form as H20 vapors are pulled off of 500.0 g of H20 () starting at 25.0°C.
18) 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J of work. Determine, in J, the change in thermal energy of the system. a) 4 b) 10 c) 20 d) 3 Answer_______________ 19) It is possible for a device to transform a given amount of heat completely into work. a) true b) false Answer_______________ 20) The density of a block of iron is 7,860 kg/m3. The density...
When water vapor condenses to a liquid, must heat be added or removed to maintain a constant temperature?
18) 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J of work. Determine, in J, the change in thermal energy of the system. a) 4 b) 10 c) 20 d) 3
1. Definitions. Fill in the blank with the LETTER of the most appropriate term from the following: A. Charles' Law B. neutralization C. heat of fusion D. Dalton's Law E. heat of vaporization F. heat capacity (specific heat) G. evaporation H. condensation I. melting J. Boyle's Law K. ideal gas law L. pressure M.PH N. Arrhenius acid S. Arrhenius base T. kinetic molecular theory states that pressure and volume are inversely proportional states that volume and absolute temperature are directly...
when a substance melts, is energy being added or removed REPORT FOR EXPERIMENT 5 (continued) NAME 6. When a substance melts, is energy being added or removed? When a substance freezes, is energy being added or removed? 6. When the solid and liquid phases are present together simultaneously, which phase, solid or liquid, contains the greater amount of energy? In which phase are the mole- cules moving faster? Explain.