Recent content by cheme2019

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    Calculating Flow Rates for Cascading Heat Pumps

    UPDATE: So I found out that I can use ΔH = Ws to start out with the compressor. I was able to find T2' to get rho and ΔH', then use the efficiency to get ΔH. So now I'm stuck at my departure function, because density is changing with respect to temperature, so I don't know how to integrate my...
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    Calculating Flow Rates for Cascading Heat Pumps

    Homework Statement I am given that a Chemical Company wants to implement a cascading refrideration cycle to provide 1 MM Btu/hr of cooling. We are given the three compounds we are using. Evaporator Temperature (F) Compresspr Out Pressure(psia) Cycle 1...
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    Different states of a Carnot Cycle

    Homework Statement A Carnot engine with water as the working fluid operates with a water recirculation rate of 1 kg/s. For TH = 475 K and TC = 300 K, determine: a. The pressure of each state b. The quality of each state c. The rate of heat addition d. The rate of heat...
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    Equilibrium pressure of calcium carbonate

    But can't you use energy per unit volume for pressure? Similar to how atm is J/L. Plus I'm only given ΔG in kJ/mol and I don't know how to convert that into CGS
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    Equilibrium pressure of calcium carbonate

    Homework Statement Calcium carbonate primarily occurs as two crystalline forms, calcite and aragonite. The value of∆!° for the transition CaCO3(calcite) ⇌ CaCO3(aragonite) is +1.04 kJ·mol-1 at 25°C. At that temperature the density for calcite is 2.710 g·cm-3, and that of aragonite is 2.930...
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    Equilibrium Calculation for Fe3O4-CO Reaction at 600°C and 5.00 atm

    Homework Statement The Reaction Fe3O4(s) + CO(g) ↔ 3 FeO(s) + CO2(g) took place at 600°C and at a constant total pressure of 5.00 atm. Determine the amount of each substance at equilibrium if there were 1 mole of Fe3O4, 2 moles of CO, .5 moles of FeO, and .3 moles of CO2...
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    I What happens to super-symmetry at the center of a black hole?

    I was watching a "Sixty Seconds" video (link below), where one of the professors answers the question 'What would happen to an electron if it were sucked into a black hole?' He proceeded to say that it would probably not be able to be defined as an electron because at high energy...
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