A certain substance A has a boiling point of 78 degrees celsius and substance B has a billing point of 110 degrees celsius. 1. Which substance has a higher vapor pressure? 2. Which substance has a stronger force of attraction? 3. Which substance has a higher heat of vaporization? 4.  which one will have a higher viscosity

Q: methane b. acetone c. ethanol d. water 18. Which substance has the highest viscosity? 19. Which…

A: The answers are as follows:

Q: The boiling point of three compounds are given below. s are, Compound A Compound B Compound C 43.1…

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Q: 1. What type(s) of intermolecular forces can exist between HF and H2S? A. Hydrogen bonding B. London…

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Q: 20. On a relative basis, the weaker the intermolecular forces in a substance are, the a) larger is…

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Q: Choose the letter of the correct answer. Pick the substance with the given property. 1. Highest…

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Q: Which of the following is probably a molecular solid? A. A solid that melts at 0 °C and is softer…

A: Answer  A solid that melts at 0 C and is softer than steel.

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A: There are three phases of matter. The phase of matter can be interchanged by changing the…

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A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure…

A: Enthalpy is the energy released or absorbed during a reaction. Vaporization is a process in which a…

Q: The heat of fusion of some component A at it normal melting point 242 K is 3.62 cal/g. The densities…

A: The relation between heat of fusion and pressure is shown below: P2 -P1 =∆Hfusion∆VfusionlnT2T1…

Q: A 100.0-mL sample of water is heated to its boiling point. How much heat (in kJ) is required to…

A: Density of water = 1.00 g/mL Volume of water = 100 mL Heat of vaporization of water = 40.7 kJ/mol…

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A: All things are provided in handwritten solution.

Q: How much heat must be added to a 2-kg block of ice at -5°C to change it to water at 10°C? C of ice =…

A: Specific heat capacity of water: 4.184 J/(g oC) Specific heat capacity of ice: 2100 J/(kg oC) Latent…

Q: What is the important consequence of ice havinv a lower density than liquid water? a. The presence…

A: Ice having a lower density  as compared to water .It means ice will float on water.As more dense…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.