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A $74.6-\mathrm{g}$ ice cube floats in the Arctic Sea. The temperature and pressure of the system and surroundings are at 1 atm and $0^{\circ} \mathrm{C}$. Calculate $\Delta S_{\mathrm{sys}}, \Delta S_{\mathrm{surr}},$ and $\Delta S_{\text {univ }}$ for the melting of the ice cube. What can you conclude about the nature of the process from the value of $\Delta S_{\text {univ? }}$ (The molar heat of fusion of water is 6.01 kJ/mol.)

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Chemistry 102

Chapter 17

Entropy, Free Energy, and Equilibrium

Thermodynamics

Carleton College

Rice University

University of Maryland - University College

Brown University

Lectures

00:42

In thermodynamics, the zeroth law of thermodynamics states that if two systems are in thermal equilibrium with a third system, they are also in thermal equilibrium with each other.

01:47

A spontaneous process is one in which the total entropy of the universe increases. In a spontaneous process, the system will move from an ordered state to a disordered state, such as from ice to water, or from a solid to a gas. The concept of spontaneity was introduced by Rudolf Clausius in 1850.

04:05

A $74.6-\mathrm{g}$ ice cu…

02:07

A 74.6-g ice cube floats i…

a solution for the above question here. But more love is too. Oh, they will, too. 74.6 scrum into one mole divided by 18.2 grass is equal to 4.14 more. Yeah, yeah, for first transition hungry here. Delta. Yes. Off System V is equal to Delta. Edge off the system, divided by temperature. You think Belgium you 4.14 multiply 6070 Divided by 27 three Jewell Pirmin is equal to 911 Chill Kilo. Pirmin party. Lou Pearlman, India. Good. Delta s off. The surrounding is equal to minus Delta age off. The system, divided by temperature, is equal to 4.14 Multiply six. Do you know what? Mm. Here, behave. 60 mhm. 70 Divided by 2. 73. Jewell Permal is equal to Yes. Yeah, minus 91.1. Jewell. Particular Permal. And here Delta s off. The universe is equal to Delta is off the system. Plus, Delta is after surrounding is equal to 91.1 minus 91.1 is equal to zero. So here, Gus, no net change

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