2. Below is the phase diagram of sulphur. At 95.4°C, the densities of rhombic andmonoclinic sulphur are 2.07 g cm³ and 1.96 g cm³, whilst the enthalpy change forphase transition from rhombic to monoclinic sulphur is 0.3 kJ mol1.Sulfur153°C,1420 atmLiquid95.4°C115.21°C1 atmPMonoclinic444.6°C115.2°C,3.2 x 105 atmRhombic95.3°C,5.1 x 10-6 atmGasT iv) Determine the volume change AV for the transformation from rhombic tomonoclinic sulphur.v) Estimate the pressure at which rhombic and monoclinic sulphur coexist inequilibrium at a temperature of 373 K.

iv) Determine the volume change AV for the transformation from rhombic to monoclinic sulphur. v) Estimate the pressure at which rhombic and monoclinic sulphur coexist in equilibrium at a temperature of 373 K.

iv) Determine the volume change AV for the transformation from rhombic to monoclinic sulphur. v) Estimate the pressure at which rhombic and monoclinic sulphur coexist in equilibrium at a temperature of 373 K.

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

2. Below is the phase diagram of sulphur. At 95.4°C, the densities of rhombic and
monoclinic sulphur are 2.07 g cm³ and 1.96 g cm³, whilst the enthalpy change for
phase transition from rhombic to monoclinic sulphur is 0.3 kJ mol1.
Sulfur
153°C,
1420 atm
Liquid
95.4°C
115.21°C
1 atm
P
Monoclinic
444.6°C
115.2°C,
3.2 x 105 atm
Rhombic
95.3°C,
5.1 x 10-6 atm
Gas
T

iv) Determine the volume change AV for the transformation from rhombic to
monoclinic sulphur.
v) Estimate the pressure at which rhombic and monoclinic sulphur coexist in
equilibrium at a temperature of 373 K.

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