A sample consisting of 1.0 mol Argon is expanded isothermally at 0 degree Celsius from 22.4 L to 44.8 L.(a) reversibly, (b) against a constant external pressure equal to the final pressure of the gas. (C) freely (against zero external pressure) For the three processes, calculate for q, w, triangle I and triangle H

Q: One mole of an ideal gas at 298 K expands isothermally from 1.0 L to 2.0 L (a) reversibly and (b)…

A: (a) ΔSsys, ΔSsurr, and ΔSuniv is calculated for reversible process.

Q: 2. How much work is done for the sublimstion of one mole of carbon diaxide in terms of the ideal as…

A: Work done for the sublimation of one mole of carbon dioxide = -P∆V

Q: What is equal to zero at 298 K? A) ΔrH° (F, g) B) S° (F, g) C) S° (F2, g) ΔrH° (F2, g)

A: Fluorine gas  has deltaHf0 = 0 at 298K

Q: A 5.0 g block of solid carbon dioxide is allowed to evaporate in a vessel with an initial volume of…

A: The sublimation of CO2 occurs as:CO2s→ CO2g 5 g of CO2 means 544 moles of it. Moles of CO2 =…

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

A:

Q: When a certain freon used in refrigeration was expanded adiabatically from an initial pressure of 32…

A: Given,  Initial temperature, Tinitial = 0 °C = 273 K  Final temperature, Tfinal = 22 K Initial…

Q: 22. An isothermal compression from a pressure P to twice the initial pressure is performed two ways…

A:

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: Consider a system consisting of an ice cube. (a) Underwhat conditions can the ice cube melt…

A: The ice cubes melts reversibly when solid and liquid are in equilibrium. The ice cubes melts…

Q: 2. The molar heat of vaporization (AH,up) of mercury is 59.15 kJ/mol and the density of liquid…

A: Given information: Molar enthalpy of vaporization = 59.15 kJ/mol

Q: The vaporization of a liquid at a certain temperature and pressure is spontaneous. For this process,…

A: As the vaporization of a liquid at a certain temperature and pressure is given as a spontaneous…

Q: Imagine that a sample of liquid refrigerant undergoes expansion followed by compression so that it…

A: The vaporization of liquid refrigerant in the expansion occurs at atmospheric pressure and does not…

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

A:

Q: By considering the nature of the intermolecular forces ineach case, rank the following substances…

A: KBr is an ionic compound and it consists of ions which are held to gather by strong electrostatic…

Q: The interior of a box is filled with helium gas. The interior of the box contains three equal-sized…

A: A condensate of Bose-Einstein is a collection of atoms cooled to an absolute zero head. The atoms…

Q: A sample of 2.95 mol H2 (C, = 20.5 J K-' mol"') at 21°C and 1.50 atm undergoes a reversible…

A:

Q: Calculate AS, AS and AS for this process. The C, of water and ice for the temperature range between…

A: Solution - According to the question - Given - deltaS(univ) = deltaS(sys) + deltaS(surr) deltaS(sys)…

Q: Consider the following processes: I. condensation of a liquid II increasing the volume of 1.0…

A: Entropy is described as the degree of disorder. Whenever there is a disorder in a molecule it shows…

Q: Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one- half of a…

A: At constant temperature, change in entropy is calculated using formula :

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: Estimate the possibility of spontaneous process at TO=308K, if AH° =420 kJ, ASO = 24 J/K.

A:

Q: The difference between the energies of reaction at constant pressure and constant volume for the…

A: Heat at constant pressure = ΔH Heat at constant volume  = ΔU R = 8.314 J mol-1 K-1  T = 298 K

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: A 7.24-g sample of ethane occupies 4.65 L at 294 K. (a) Calculate the work done when the gas expands…

A: Isothermal is process done under constant temperature.

Q: Calculate AS (for the system) when the state of 3.00 mol monatomic ideal gas molecules, for which…

A:

Q: 1.00 mol of an ideal gas, initially occupying 12.2 L at 298 K, expands isothermally against a…

A:

Q: A 20.0 L gas kept in a movable piston has a n initial pressure of 1.5 atm at 25oC. If the piston is…

A: Given,  Initial volume = V1 = 20.0 L  Initial pressure = P1  = 1.5 atm  Temperature = 25 oC Final…

Q: Calculate ΔS (for the system) when the state of 3.00 mol of gas molecules, for which Cp,m = 5/2 R,…

A: The change in entropy, ∆S, is given by, ∆S = nCplnT2T1-nRlnP2P1 where CP is the specific heat…

Q: For a certain process at 455 K, A G=-12.1 kJ and A H=-9.2 kJ. Therefore, A S for the process is

A: Given :-  ∆G = -12.1 kJ  ∆H = -9.2 kJ  T = 455 K  To calculate :  ∆S (inJ/K mol)

Q: Calculate AS (for the system) when the state of 4.00 mol monatomic ideal gas molecules, for which…

A: Using the formula;  delta(S) = n*cp*ln(Tf/Ti) - n*R*ln(P f/P i) Given, n = no. of moles = 4  cp,m =…

Q: 50 moles of ideal gas are expanded isothermally at 250 c from an initial pressure of 100 bar to a…

A: Given:  Moles of the gas = 50 moles Temperature = 250°C = 250 +273.15 K = 523.15 K Initial pressure…

Q: An 84 g sample of ethylene or ethene gas is reacted with 125 g of HCl gas in a system at  At a…

A:

Q: For any process that occurs at constant temperature and pressure, what is the significance of ∆G =…

A: Gibbs free energy is the amount of free energy of the system that is used to do some useful work. It…

Q: Give the mathematical expression of heat capacity.

A:

Q: Calculate AS (for the system) when the state of 4.00 mol monatomic ideal gas molecules, for which…

A: Given :             T1 = 270 C = 300K             T2 = 2270 C = 500K             P1 = 4.0 atm…

Q: As a 1.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it is -2.50 ×…

A: Work done, W = - 2500 J Initial pressure, Pi = 3.60 atm Initial temperature, Ti = 500 K

Q: One mole of an ideal gas with a volume of 1.0 L and a pressure of 5.0 atm is allowed to expand…

A: P1 = 5 atm V1 = 1 L V2 = 2 L n = 1 mole