10 kg of ice at -25°C is dropped in to a big lake at 0°C. (Assume that the lake is big enough for the temperature of the lake toremain constant before and after the interaction.)JJ(Use cce =2100= 3.33x 105andkg · KKifyou find negative answers, include the minus sign in your final result!)a) What is the equilibrium temperature of the system ice+lake in Kelvin scale? T.:K%Db) How much energy is transferred to the ice to heat it from -25°C to 0°C? Qice%3DJc) Assuming that the ice+lake system is isolated, how much energy is withdrawn from the lake?Qjak%Dlaked) How much water of the lake is turned into ice? m =kge) Calculate the change of the entropy of ice that was dropped into the lake? ASce%3DKJf) Calculate the change of the entropy of the lake? ASIokeg) Does the total change of entropy of the ice+lake system comply with the second law of Thermodynamics?

Given: mass of ice m = 10 kgtemperature Tice = -25 °C = -25+273 = 248 KCice=2100 J/kg.KLf = 3.33*105…

10 kg of ice at-25°C is dropped in to a big lake at 0°C. (Assume that the lake is big enough for the temperature of the lake remain constant before and after the interaction.) J (Use Cice = 2100 kg - K = 3.33×105 and K if you find negative answers, include the minus sign in your final result!) a) What is the equilibrium temperature of the system ice+lake in Kelvin scale? T K b) How much energy is transferred to the ice to heat it from -25°C to 0°C? Q: %3D ice J c) Assuming that the ice+lake system is isolated, how much energy is withdrawn from the lake?Qjake ) How much water of the lake is turned into ice? m = kg e) Calculate the change of the entropy of ice that was dropped into the lake? ASice = K J OCalculate the change of the entropy of the lake? ASake K O Does the total change of entropy of the ice+lake system comply with the second law of Thermodynamics?

10 kg of ice at-25°C is dropped in to a big lake at 0°C. (Assume that the lake is big enough for the temperature of the lake remain constant before and after the interaction.) J (Use Cice = 2100 kg - K = 3.33×105 and K if you find negative answers, include the minus sign in your final result!) a) What is the equilibrium temperature of the system ice+lake in Kelvin scale? T K b) How much energy is transferred to the ice to heat it from -25°C to 0°C? Q: %3D ice J c) Assuming that the ice+lake system is isolated, how much energy is withdrawn from the lake?Qjake ) How much water of the lake is turned into ice? m = kg e) Calculate the change of the entropy of ice that was dropped into the lake? ASice = K J OCalculate the change of the entropy of the lake? ASake K O Does the total change of entropy of the ice+lake system comply with the second law of Thermodynamics?

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)...

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Concept explainers

Energy transfer

The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.

Molar Specific Heat

Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)

Thermal Properties of Matter

Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.

Question

10 kg of ice at -25°C is dropped in to a big lake at 0°C. (Assume that the lake is big enough for the temperature of the lake to
remain constant before and after the interaction.)
J
J
(Use cce =2100
= 3.33x 105
and
kg · K
K
if
you find negative answers, include the minus sign in your final result!)
a) What is the equilibrium temperature of the system ice+lake in Kelvin scale? T.:
K
%D
b) How much energy is transferred to the ice to heat it from -25°C to 0°C? Qice
%3D
J
c) Assuming that the ice+lake system is isolated, how much energy is withdrawn from the lake?Qjak
%D
lake
d) How much water of the lake is turned into ice? m =
kg
e) Calculate the change of the entropy of ice that was dropped into the lake? ASce
%3D
K
J
f) Calculate the change of the entropy of the lake? ASIoke
g) Does the total change of entropy of the ice+lake system comply with the second law of Thermodynamics?

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