Suppose 50.0 g of superheated Na(s) melts at 500 K and 1 bar pressure. Find the ΔSsys, ΔSsurr, and \ΔSuniv in J/K and round the answer to the hundredths place. Thermodynamic Data for SodiumPropertyValueTfus371 KΔfusH0 at T_{fus}Tfus2.60 kJ/molCp,m0(l) at 298 K32.7 J K-1 mol-1Cp,m0(s) at 298 K28.2 J K-1 mol-1Assume heat capacities are independent of temperature.

Melting of Na is a reversible change. So, ∆Ssys=∆qT and,∆Ssurr =-∆qTHere, ∆q= m×Cp×∆Tm= mass. Cp=…

Answered: Suppose 50.0 g of superheated Na(s)…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Suppose 50.0 g of superheated Na(s) melts at 500 K and 1 bar pressure. Find the ΔSsys, ΔSsurr, and \ΔSuniv in J/K and round the answer to the hundredths place.

Thermodynamic Data for Sodium

Property	Value
Tfus	371 K
ΔfusH0 at T_{fus}Tfus	2.60 kJ/mol
Cp,m0(l) at 298 K	32.7 J K^-1 mol^-1
Cp,m0(s) at 298 K	28.2 J K^-1 mol^-1

Assume heat capacities are independent of temperature.

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