For the isothermal expansion of a gas into a vacuum, ∆E = 0, q = 0, and w = 0. Explain why no work is done by the system during this process.

Q: Calculate the work (in kJ) when 4.34 mol of solid ammonium chloride, NH4CI, decomposes completely to…

A: Moles of NH4Cl = 4.34 mol Temperature of HCl = 1676 K  1 KiloJoule = 1000 Joule We have to find the…

Q: sample of methane of mass 4.50 g occupies 12.7 L at 310 K. (a) Calculate the work done when the gas…

A: Given information: Mass of methane = 4.50 g Volume = 12.7 L Temperature = 310 K External pressure =…

Q: Calculate the work done by a gas consisting of 2.0 mol of molecules when it expands reversibly and…

A: Change in a system when temperature is constant is called isothermal process. A process which is…

Q: 2. Two metals of equal mass with different heat capacities are subjected to the same amount of heat.…

A: Given: Two metals of equal mass with different heat capacities are subjected to the same amount of…

Q: A cup of rather dilute hot tea initially at 140 degrees F is served to a customer at Howard…

A: Mass of tea = 200g = m Initial temp = Ti = 140°F = 60°C Final temp = Tf = 100°F = 37.7°C Specific…

Q: calculate the maximum amount of work that can be obtained from the combustion of 1.00 mole of…

A: The balanced equation of combustion of ethane can be given as

Q: 4. In an extensive property of a thermodynamic system (a) extensive heat is transferred (b)…

A: Extensive property of a thermodynamic system is the property which is dependent on the amount of…

Q: Consider the following process: a system changes from state 1 (initial state) to state 2 (final…

A: State functions are those functions whose value depends only on the initial and final state but…

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: For the isothermal expansion of a gas into a vacuum,ΔE = 0, q = 0, and w = 0. (a) Is this a…

A: (a) The spontaneous process is the process which starts on its own or initiate without any external…

Q: A system contracts from an initial volume of 15.00 L to a final volume of 10.00 L under a constant…

A:

Q: Which of (i) volume, (ii) heat, (iii) internal energy, (iv) density are state functions?

A:

Q: What is the maximum work (in kJ) that can be done with the combustion of 1.0 mole of methanol at 298…

A: W = -∆nRT  Where W = work  ∆n = change in moles       = Sum of coefficients of gaseous product- sum…

Q: When 178.0 J of energy is supplied as heat to 1.90 mol of gas molecules, the temperature of the…

A: Heat = 178.0 J Moles = 1.90 mole  ∆T = 1.78 K

Q: The specific heat capacity of ethanol (C₂H5OH) is 2.44 J/g. K. What is its molar heat capacity (in…

A: Here we are required to find the molar heat capacity of ethanol

Q: Which of the followings are state functions? 1. Internal Energy 2. Gibbs free energy 3. Heat 4.…

A: Please find your solution below : State function is defined as the property which depends only on…

Q: The constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature…

A: At constant pressure q= ∆H ∆H = cp∆T integrate this and get the answer. At constant volume Work is…

Q: 280 mmol of an ideal gas occupy 12.7 L at 310 K. Calculate the work done when gas expands a)…

A: a. Number of moles of ideal gas = 280 mmol Conversion factor 1 mol = 103 mmol1103mol = 1 mmol1 mmol…

Q: A substance has a molar specific heat, cV,m=4.00 J K-1mol-1and a molar mass, M=10.0 g/mol. A 100.0 g…

A: Given : mass of sample 1 and 2 and molar mass of sample and molar specific heat. To find: final…

Q: Which of the following are state functions? (i) energy, (ii) work, (iii) enthalpy, (iv) heat, (v)…

A: In thermodynamics, state function is a property of a system whose value depend only on the state of…

Q: What is the work performed when a gas expands from 0.25 L to 2.33 L against an external pressure of…

A:

Q: For a constant-pressure expansion of a gas, the work done by the system (-w) is equal to the…

A: Work done by the gas is given by the expression w=-p∆V

Q: A substance has a molar specific heat, cV,m=4.00 J K-1mol-1and a molar mass, M=10.0 g/mol. A 100.0 g…

A: Given : Intial temperature of sample 1= 250 K.                 Initial temperature of sample 2 = 400…

Q: If 0.1 moles of an ideal gas compressed isothermally from 2.00 dm to 1.5 dm' at 350K temperature.…

A:

Q: If 54.0 g argon at 400 K is compressed isothermally and reversibly from a pressure of 1.50 to 4.00…

A: The work done in an isothermal process is given by, w=-nRTlnP2P1 where n is the number of moles, R…

Q: Consider the following figure. (The x axis is marked in increments of 1 m³.) Р (Рa) 6 × 106 4 × 106…

A:

Q: Using standard enthalpies of formation and standard molar entropies, determine the normal boiling…

A: The equation for the vaporization of water – CH3OH l ↔CH3OH g At equillibrium, ∆G∘ =0∆G∘ =∆H∘ -T∆S∘…

Q: Half a mole of an ideal gas expands isothermally and reversibly at 273.15 K from a volume of 22 L to…

A:

Q: what are the correct units for specific heat capacity G/JK J/g g/J J/gK

A: The specific heat of a substance is the amount of energy required to raise the temperature of 1 gram…

Q: (3) It takes 330 J of energy to raise the temperature of 24.6 g of benzene from 21.0°C to 28.7° C at…

A: Given: Total energy = 330 J Mass of benzene = 24.6 g Initial temperature = 21 °C Final temperature…

Q: The combustion of 1.839 g of glucose (C6H12O6) in a bomb calorimeter (Ccal = 4.60 kJ/℃) results in a…

A: The amount of glucose (C6H12O6) = 1.839 g Heat capacity of a bomb calorimeter = Ccal = 4.60 kJ/℃…

Q: A sample of argon of mass 6.56 g occupies 18.5 dm3 at 305 K.(i) Calculate the work done when the gas…

A: Given: Mass of argon is 6.56 g. Volume is 18.5 dm3. Temperature is 305 K. External pressure is 7.7…

Q: calculate the differnce between the molar enthalpy and internal energy changes in the synthesis of…

A: ∆H = ∆E + ∆nRT Where ; ∆H = Molar enthalpy Change ∆E = internal energy Change  ∆ n =Number of…

Q: Half a mole of an ideal gas expands isothermally and reversibly at 273.15 K from a volume of 22 L to…

A: Given: Moles of gas,n = 0.5 mol Gas constant, R = 8.314 J / K mol   Final Volume, V2 = 10 L Initial…

Q: Calculate the work (in J) associated with the compression of a gas from 45.3 L to 21.8 L at a…

A:

Q: Under what circumstance can the enthalpy of a system decrease for a spontaneous process?

A: Entropy measures the degree of randomness in the system. When a substance changes its phase solid to…

Q: For a constant-pressure process, what is the difference between the internal energy (delta U) and…

A: At a constant pressure, the change in enthalpy is equal to the sum of internal energy and the…

Q: Example Calculate the work (in J) associated with the expansion of a gas from 44 mL to 63 mL at a…

A: According to the irreversible isothermal expansion of ideal gas, w = -P2 (V2 - V1) where, w is work…

Q: Calculate the energy as heat needed to increase the temperature of 0.80 mol of nitrogen, Nz, by 9.5…

A: Mole of nitrogen = n = 0.80 mol  Temperature change = ∆T = 9.5 K  Molar heat capacity = Cm =  29.1…

Q: In which of the following scenarios is no change in the internal energy of the system possible? O q…

A:

Q: The constant pressure molar heat capacity of nitrogen gas, N2, is 29.125 J K-1 mol -1 at 298.15 K.…

A: Given  Molar Heat capacity at constant pressure Cp,m=29.125 JK-1mol-1 Mole = 2mol ∆T= 25 °C…

Q: If 54.0 g argon at 400 K is compressed isothermally and reversibly from a pressure of 1.50 to 4.00…

A: The change in energy and enthalpy has to be given, It is an isothermal process and  the work done…