Which of the following expressions is non-zero?

Q: molecule is a molecule in which one end of the molecule is slightly positive, while the other endis…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Coffee-cup calorimetry is carried out at O constant tenmperature O constant volume O constant…

A: A coffee cup calorimeter is frequently used to determine the specific heat of a solid and the heat…

Q: Was Q less than, greater than or equal to K under the initial conditions used? Justify your choice…

A: It is given that reaction for the formation of N2O4 is reversible in nature. Therefore, Le…

Q: maximum work t

A:

Q: A model for the compound cqyelohexane is shown. bal sick v-- abels Write a balanced chemical…

A: Cyclohexane is one of the alicyclic hydrocarbon which has 6 carbon atoms and 12 hydrogen atoms. It…

Q: The standard enthalpy for diamond and graphite are the same value. O TRUE FALSE

A: Standard enthalpy is defined as the enthalpy change during the formation  of 1 mole of given species…

Q: What is the final pressure (in atm.)?

A:

Q: Calculate q, w, Delta E, and Delta G for this process?

A: PA = 12.0 atm  VA = 10.00 L

Q: Under what conditions will the quantities q and w be negative numbers?

A: First law of thermodynamics is stated as follows,

Q: For nitrogen gas the values of C, and C, at 25°C are 20.8 J K-1 mol-1 and 29.1 J K-1 mol-1,…

A: Here we have to determine the fraction of energy used to increase the internal energy of gas and the…

Q: Absolute zero is _____________________ K.

A: Absolute Zero is the lowest temperature, at the molecules possess minimum energy.

Q: is the following statement correct?

A:

Q: The specific heat capacities (in units of J/g K) of element X, Y and Z are 0.379, 0.485 and 0.349,…

A: Specific heat capacity: The amount of heat that is required by the unit mass of a substance at the…

Q: Which of the following processes has a negative AS?

A: ∆S is negative if ∆ng is negative.  ∆ng = (sun of gaseous moles of products) - (sum of gaseous moles…

Q: Derive a relationship between ΔH and ΔE for a process in which the temperature of a fixed amount of…

A: ENTHALPY Enthalpy of a system is defined as the sum of its internal energy and product of its…

Q: (b) Regard the enthalpy as a function of T and P. Use the cyclic rule to obtain the expression 6, -…

A:

Q: If a gas-forming reaction performed in a coffee cupcalorimeter is an exothermic process, what can be…

A: Heat is a process function, not a state function, we can quantify how much thermal energy is…

Q: What is the difference between AS and AS°for a chemical change?

A: Entropy is a measure of the randomness of a system. It can have a positive or negative value. It is…

Q: K, for

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In which of the following processes AS is positive?

A: ∆ng = (number of gaseous moles of products) - (number of gaseous moles of reactants)  ∆S is positive…

Q: if change in E is less then zero then what condition should be followed.prove that.

A: Electromotive force denoted as E or emf is defined as energy per unit chargethat is imparted by an…

Q: what is difference between adiabatic and isothermal process?

A: In adiabatic process, there is no heat transfer takes place with the surrounding. The internal…

Q: (a) Which terms in mathematical expression that states the First Law of Thermodynamics are state…

A:

Q: Internal energy is defined as Select one: a. the total kinetic energy of all the system components.…

A: Internal energy - kinetic energy plus potential energy

Q: bomb calorimetry occurs under constant ______ and therefor measures change in _______

A: In Bomb Calorimetry, the volume of the system remains same can not be changed so that ∆V = changed…

Q: If a heat engine is working between 10 degrees * C and 273. Then, the efficiency of the heat engine…

A: Solution

Q: Evaluate each pair of statements and choose from the following which condition is applicable:

A: Safety tools and equipment's like lab coat, first aid box, burn ointment, protective gloves, safety…

Q: Calculate q, AH and AU for the process during which 2 mol NO2 is heated at a constant pressure of 1…

A:

Q: Determine the rote low ex pression for the following recxtion and give units for k.

A: In rate law expression :  Rate is equation is written as product of concentration of reactants with…

Q: What is the sign of q for the compression?

A: Compression is a process under which the volume of the system is gradually reduced, pressure and…

Q: So, when there is no value given for a substance O2, you are to assume that it is zero?

A: ∆Hfo of O2=0∆Hfo of formation of O2=0

Q: Explain why the equation shows that the system is at ewui

A: The answer is as follows:

Q: Hess's Law cannot be used to compute q for a process.

A: Answer is given as

Q: Calculate the sum of coefficients for the following equation balanced for acidic conditions. XO2-…

A: There are two types of reaction in redox reaction,first is the oxidation reaction and second is the…

Q: Calculate ΔSº for the reaction using the data table provided. NH3(g) + HCl(g) → NH4Cl(s)     ΔSº =…

A:

Q: Calculate ΔS (for the system) when the state of 2.00 mol of gas molecules, for which Cp,m = 7/2 R,…

A: The entropy of the system has measured the randomness of the particles. The higher the degree of…

Q: A sample of hydrogen gas at 20 °C and 0.570 atm has the pressure on it reduced to 0.100 atm. What is…

A:

Q: What sign for AS do you expect when the volume of 0.100 mol of an ideal gas at 27 °C is increased…

A:

Q: If 5 g of compound X is made to react with 3 grams of Y in water in a constant pressure coffeecup…

A: The reaction given is, Given: Mass of X reacting = 5 g Mass of Y reacting = 3 g Ccal = 10 J/oC…

Q: Determine t

A: Concept: Katayama Equatiom γ Mρl-ρg23=k' Tc-Y

Q: Why are ∆fusS and ∆vapS of a system always positive values?

A: We have to state reason for positive values of ∆S values.

Q: Calculate S when 0.0385 mol of an ideal gas (Cv,m = 1.5R) at 20.0oC and 1.30 atm expand to 0.900…

A: Temperature can be converted from degree celsius to kelvin by the expression: T1K=20+273.15=293.15…

Q: The distance between Sherbrooke and Montreal is 137km. However, a car driving between the two points…

A: Answer - State function - State function: The properties which depends only on initial and final…

Q: Is the volume of a system a state function?

A: State function: A state function is thermodynamic quantity which describes equilibrium state of…

Q: What is the standard state of neon?

A: Element = Neon  Standard state = ?

Q: A 201-lb man decides to add to his exercise routine by walkingup three flights of stairs (45 ft) 20…

A: Mass is given in lb and height is given in ft. 201 lb=91.1721 Kg45 ft=13.716 m