A piston–cylinder device contains 25 g of saturated water vapor that is maintained at a constant pressure of 300 kPa. A resistance heater within the cylinder is turned on and passes a current of 0.2 A for 5 min from a 120-V source. At the same time, a heat loss of 3.7 kJ occurs. (a) Show that for a closed system the boundary work Wb and the change in internal energy DU in the first-law relation can be combined into one term, DH, for a constantpressure process. (b) Determine the final temperature of the steam.

Q: Why is the entropy higher for a system with 5 particles with energy states >1 than for a system with…

A: Entropy increases precisely for energy states>1 because energy is conserved.     To hold a…

Q: a T³V 23=

A: Partition Function is,   Then pressure can be calculated as,

Q: A display demonstrating probability consists of a board full of pegs with four bins at the bottom. A…

A: (a) Given: Each bin can hold multiple balls. The balls are distinguishable. Introduction: Classical…

Q: Consider system with just two states. Take the two states to have energies 0 and ε. Partition…

A: I have written formula

Q: A student rolls 2 dice (an object that is a cube with faces numbered 1-6). The dice are "fair,"…

A: Entropy (S) of a macrostate that consists of Ω microstates may be given in terms of the Boltzmann…

Q: Consider a system of two Einstein solids with 10 ocillators in A and B each, and a total of 40 units…

A: Consider the given data as below. Number of oscillators in solid A, NA=10 Number of oscillators in…

Q: Does the internal energy (U) of a perfect gas go up or down with increasing pressure under…

A:

Q: Consider a sample of an ideal gas with a volume of 11.00 L, a temperature of 270.0 K, and a pressure…

A:

Q: From the two-level partition function: q = 1+ ekr obtain the total energy of N two-level systems.…

A:

Q: By considering how the total entropy changes at fixed temperature, show that particles will flowfrom…

A:

Q: Polymers, like rubber, are made of very long molecules, usually tangled up in a configuration that…

A: (a) Each link has only two possible states, and they point either left or right. Let  be the number…

Q: The state of an ideal gas of 1 mole changes from (Vo, po, To) to (Vo+dV, po+dp, To+dT) through a…

A: Here the system consist of 1 mole gas which changes from ( V0 , p0, T0) to state ( V0+dV, p0+dp,…

Q: An inventor is claiming that she has developed a heat engine that can operate with a thermal…

A:

Q: s initially submerged as a saturated liquid at a pressure of 200 kPa. Then, 450 kJ of heat transfer…

A: Known values :  Specific entropy of saturated water  at liquid state = 1.5302 KJ / kg.K Specific…

Q: Consider a two-step process where 2.00 mol argon is (1) heated at constant pressure from 300. K to…

A: Given that, For argon gas specific heat at constant pressure is Cp=52R Number of moles n=2mol…

Q: The Joule-Kelvin coefficient is given by *=().-EE).-リ (1) Since it involves the absolute temperature…

A: The Joule-Kelvin coefficient is defined as the slope of the is-enthalpic curve at any point on the…

Q: For a reaction of conversion of ATP into ADP at 20⁰C, calculate the reaction Gibbs free energy.…

A: Here,  We have,Enthalpy ∆H =20.27 KcalEntropy ∆S = 85 cal/KelvinT =20°C =273+20 =293 K

Q: Starting with the Clausius Inequality, ∂S ≥ ∂q/T, can you prove that, under conditions of constant…

A:

Q: A diatomic ideal gas is brought from an initial equilibrium state at p1 = 0.50 atm and T1 = 300 K to…

A: The initial pressure,   The final pressure,

Q: A certain coal-fired power plant has a rated power capacity of P = 955 MW. The output of this plant…

A: As a general principle, the efficiency of a power plant working on a cycle is increased by…

Q: . Determine the work done by any ideal gas (monatomic, diatomic, or polyatomic) during an adiabatic…

A: Given data- Any ideal gas is an adiabatic expansion from volume Vi and pressure Pi to volume Vf and…

Q: Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, P -1 bar…

A:

Q: Determine the amount by which the star's thermal radiation increases the entropy of the entire…

A: Entropy The entropy change of a system if ∆Q amount of heat is absorbed by the system at temperature…

Q: Consider a star that is a sphere with a radius of 6.38  108 m and an average surface temperature of…

A: Given data: Radius R =6.38×108 m Star's temperature T= 5200 K Universe's temperature T'= 2.73 K

Q: Consider the high temperature rotational partition function. 1 BA where A is a constant related to…

A: We are given partition function for some molecule. Here β=1kT Where T is temperature. The average…

Q: (1) When the energy of the system (simple harmonic oscillator) is given by E = (n +;) hw in a heat…

A: The partition function is given as, Z=∑n=0∞e-EnkT Thus,…

Q: Use the relation dW = - p dV to show that: (a) The work done in an isothermal expansion of N moles…

A: The expression of Workdone is followingdW = -pdV .......(1)For isothermal temperature T is constant.

Q: Each particle has 2 energy levels that are 0 and α. Using ni=Ae^−εi/kT What is the entropy S of…

A:

Q: Which type or types of energy will have the greatest contribution to the molar entropy of N2 at 298…

A: The molar entropy of any substance is defined as the entropy of the pure substance at standard…

Q: 1.14. Show that for a one component p - V-n system (Əµ/av),= v(@p/av)T, where u is the volume per…

A:

Q: By considering how the total entropy changes at fixed temperature, show that particles will flow…

A: To show that particles will flow from system  A  to system  B  if the chemical potentials…

Q: |Calculate the change in entropy in cal/K for a sample of water with mass m= 1.6 kg and changing…

A: mass of water m = 1.6 kg initial temperature is T1 = 24.2 oC = 24.2 + 273.15 =  297.35 K final…

Q: Consider N identical harmonic oscillators (as in the Einstein floor). Let the allowed energies of…

A: The energy of the system is given as  E=nhfZ=partition function of a single oscillatorZ=∑n=0∞  e-βEn…

Q: Consider a system of two levels E1= 0, g1= 1 and E2= 1.6 X102ºJ, g2 = 2 is populated by %3D N atoms…

A: Two energy levels E1 = 0, g1 = 1  E2 = 1.6 × 10- 20 J, g2 = 2   Total number of atoms = N

Q: Consider two distinguishable particles, each of which can have energy nε with n = 0, 1, 2, .... By…

A: Step 1: Step 2: Step 3: Step 4:

Q: system of three particles can possess four energies 0, E, 2E, and 4E with degeneracy 1,3,5,6…

A: The partition of the system is given by Where gi = Degeneracy of the state, Ei = Energy of the…

Q: Find the change in entropy during the transition of 8 grammes of oxygen from a volume of 10 litres…

A:

Q: Prove the following four (4) thermodynamic identities ас, әс, a²p P 0² ат² aP av ат² =-T =T PCP ат…

A: Given that Cp and Cv is the heat capacity at constant pressure and volume respectively. The required…

Q: A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned…

A: Power = p = 100 W  Time interval = ∆t = 0.015 hour = 0.015 hour×60 min1 hour×60 sec1 min=54 s…

Q: In Debye Approximation the entropy at some temperature T (less than 10 K) is aT(Blank 1 ) /3 If the…

A: The entropy at some temperature is given by E=aTn3…

Q: If the adiabatic constant is 1.7 and the efficiency of Otto cycle is 73% then .the compression ratio…

A: