20. On a relative basis, the weaker the intermolecular forces in a substance are, thea) larger is its heat of vaporizationb) higher is its viscosityc) higher is its boiling pointd) higher is its melting pointe) greater is its vapor pressure at a particular temperature21. Which pair of liquids is expected to be miscible?a) H2O and CCI4b) Brz and H20c) C6H6 and H20d) C6H12 and CSH1822. Which of these elements are the primary components in "hard water"?I. magnesiumII. ironIII. calciumIV. sodiuma) I onlyb) I and IIIc) II and IIId) III onlye) II and IV

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20. On a relative basis, the weaker the intermolecular forces in a substance are, the a) larger is its heat of vaporization b) higher is its viscosity c) higher is its boiling point d) higher is its melting point e) greater is its vapor pressure at a particular temperature

20. On a relative basis, the weaker the intermolecular forces in a substance are, the a) larger is its heat of vaporization b) higher is its viscosity c) higher is its boiling point d) higher is its melting point e) greater is its vapor pressure at a particular temperature

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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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

20. On a relative basis, the weaker the intermolecular forces in a substance are, the
a) larger is its heat of vaporization
b) higher is its viscosity
c) higher is its boiling point
d) higher is its melting point
e) greater is its vapor pressure at a particular temperature
21. Which pair of liquids is expected to be miscible?
a) H2O and CCI4
b) Brz and H20
c) C6H6 and H20
d) C6H12 and CSH18
22. Which of these elements are the primary components in "hard water"?
I. magnesium
II. iron
III. calcium
IV. sodium
a) I only
b) I and III
c) II and III
d) III only
e) II and IV

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