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Heat Capacity and Internal Pressure of Cyclopentanol at Pressures up to 100 MPa Determined by the Acoustic Method

100%

Dzida M.

Acta Physica Polonica A

2008

vol. 114

issue 6A

A-75-A-80

Isobaric heat capacities and internal pressures of cyclopentanol at pressures up to 100 MPa and temperatures ranging from 293 to 318 K were determined by the acoustic method. The obtained results were compared with those of pentan-1-ol in order to study the influence of the molecular configurations comprising cyclic and normal-chain structures on pressure and temperature dependence of the thermodynamic properties. It was found that the temperature and pressure coefficients of internal pressure were sensitive to the structural organization of the liquid and reflected the character of the interactions.

Speed of Ultrasound and Internal Pressure of Propanediol and Butanediol Isomers under Elevated Pressures

51%

Zorębski E., Piotrowska M., Dzida M.

Acta Physica Polonica A

2008

vol. 114

issue 6A

A-265-A-270

Speed of ultrasound and internal pressure of 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, and 1,3-butanediol at the temperatures ranging from 293.15 to 318.15 K and pressures up to 101 MPa are analyzed and discussed in terms of molecular structure and ability to form inter- and intramolecular hydrogen bonds.

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2 Acta Physica Polonica A

2 2008

2 Dzida M.

1 Piotrowska M.

1 Zorębski E.

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Heat Capacity and Internal Pressure of Cyclopentanol at Pressures up to 100 MPa Determined by the Acoustic Method

Speed of Ultrasound and Internal Pressure of Propanediol and Butanediol Isomers under Elevated Pressures