xothermic change and an increase in entropy.

Q: Briefly distinguish between Entropy and Energy

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: (a) According to the first law of thermodynamics, whatquantity is conserved? (b) What is meant by…

A: The First Law of Thermodynamics states that energy can be converted from one form to another with…

Q: What is the change in entropy for the system (positive, negative, or zero)? Concentrated bleach is…

A: Entropy is a measure of degree of disorderness of the system. It increases with an increase in…

Q: Explain how ΔH, heat of reaction is a state function

A: ∆H, heat of reaction is a state function.

Q: Under what condition(s) is the enthalpy change of a process equal to the amount of heat transferred…

A: The relationship between enthalpy of process and internal energy change is given by  ΔH = ΔE + Δ(PV)…

Q: what is the heat evolved

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Q: If the heat is supplied to the gas and piston move by distance L due to that then what is the work…

A: Let the piston of area of cross section ‘A’ move through a distance l, so that the gas expands by a…

Q: The molar heat of the neutralization reaction ( in Cal/mol units) is equal to?

A: Given    Ccal = 10cal/°C  Csoln = 0.94cal/°C  Volume of HCl and NaOH = 20ml both  Concentration of…

Q: The specific heat of a substance at constant pressure is defined as the rate of change of with…

A: The specific heat of a substance is defined as the amount of energy needed to increase the…

Q: Coffee-cup calorimetry is carried out at constant-volume constant-pressure constant-mass

A: In actually we know the two types of calorimetry.  1- Bomb calorimetry : In this type of calorimetry…

Q: Which of the following is not necessary to state of a chemical system? a) colour b) composition c)…

A: The state of a chemical system is defined in terms of some variables like pressure , temperature ,…

Q: Using the Table of Thermodynamic Values, determine the change in enthalpy

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Q: Distinguish between work and heat at the macroscopic level

A: Step 1: At the macroscopic level, there is no difference between work and heat, and they are both…

Q: Define the term thermodynamic measurements?

A: The branch of science which deals with the quantitative relationship of heat with the other forms of…

Q: An adiabatic process is one that involves no heat transfer. What is the relationship between work…

A: Energy in the form of heat can be gained or lost by the system but in the Adiabatic process are…

Q: Which of the following is incorrect?   A. Energy can be converted from one form to another but…

A: Thermal equilibrium is the state or condition wherein the temperatures of the elements in a system…

Q: What do you mean by Enthalpy and Entropy ?

A: Enthalpy for the reaction is the energy, generally in the form of heat, which is required in case of…

Q: Differentiate between Work and Heat at the macroscopic level.

A: Both heat and work at macroscopic level are similar and are mode of transportation of energy.

Q: An adiabatic process is one that involves no heat transfer.What is the relationship between work and…

A: Introduction: From the First law of thermodynamics, Internal energy is a property of the system…

Q: what is meant by term state function?

A: State function:It is defined as the property whose value depends only upon the state and is…

Q: Complete the sentence: When heat is transferred to the system, the process is said to be ________…

A: Complete the sentence:

Q: Does thermal energy can increase even if the average kinetic energy is constant?

A: Thermal energy depends on the temperature and kinetic energy as follows.

Q: Distinguish between energy and entropy

A: Energy is the ability to do work or produce heat. The law of conservation of energy says that the…

Q: Calulate the eneray change of a system

A: The energy change of a system that release 520 J of heat energy to the surroundings is to be…

Q: enthalpy change for

A:

Q: Consider the vaporization of liquid water to steam at a pressure of 1 atm. In what temperature range…

A: Vapourization in which the process in which the liquid to vapor phase. An endothermic reaction is a…

Q: q is --_________ (positive OR negative) when heat is transferred from the surroundings to the system…

A: Statements about the thermodynamic relationship between work done, heat transfer, energy exchange…

Q: Distinguish between work and heat at the macroscopic level

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: properties of a thermodynamic system

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: When energy is exchanged between the system and the surroundings, it is exchanged as either .... or…

A: The study of exchange of energy between system and surroundings is called Thermochemistry. On the…

Q: of enthalpy

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Q: If energy flows out of a chemical system and into the surroundings, what is the sign of ΔEsystem?

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Q: What thermodynamic properties are extensive

A: Extensive thermodynamic property: A thermodynamic property that depends upon the size or the…

Q: The change of energy of a thermodynamic system is equal to: O the amount of work done to or by the…

A: According to frist law of thermodynamics ∆U = Q +W

Q: When the sign of an energy change is being determined, this would always be with respect to what?

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Q: H,SO, heat

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Q: Distinguish between work and energy at the macroscopic level

A: Both heat and work at macroscopic level are similar and are mode of transportation of energy.

Q: Discuss the relationship between the heat flow rate of calorimeter that can be directly related to…

A: The symbol for heat capacity is “C” and is defined as the amount of heat involved to increase the…

Q: positive change in entropy?

A: A positive (+) entropy change means an increase in disorder. The universe tends toward increased…

Q: In the experiment, gasoline was ignited in a bomb calorimeter and used to heat the water in the…

A: In the experiment, gasoline was ignited in a bomb calorimeter and used to heat the water in the…

Q: Thermodynamics is a branch of physical chemistry that deals with thermal changes.

A: Given: Thermodynamics.  To find : statement is True or false.  Solution : As we know that, There are…

Q: The exchange of energy between a system and its surroundings can occur in two ways: _____________…

A: In thermodynamics, a closed system can exchange energy (as heat or work) but not matter, with its…

Q: :The 1st law of thermodynamic is called .A The creation of energy .B The conservation of energy .C…

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Q: increase in entropy except :

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Q: Give the mathematical expression of heat capacity.

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Q: A heat engine performs a thermodynamic cycle. Its internal energy depending on the typle of process.

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Q: Interpret the second of thermodynamics via irreversibility?

A: