3. A household refrigerator that has a power input of 450 W and a COP of 1.5 is to cool 5 large watermelons, 10 kg each, to 8 °C. If the watermelons are initially at 28 °C, determine how long it will take for the refrigerator to cool them. The watermelons can be treated as water whose specific heat is 4.2 kJ/kg-°C. Is your answer realistic or optimistic? Explain.

Q: 4.4 Draw and label the given streams and derive expression for the indicated quantities in terms of…

A: NOTE:- “Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Braqmet erti szips of food riguone eipiensp of beloper sd of ever bluow d. What singular change can…

A: d) To vaporize letter B, we have to increase temperature or decrease pressure because presently…

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Q: I 7-133 Consider a person who is trying to keep cool on a hot summer day by turning a fan on and…

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Q: 2. You need to design a heater to preheat a gas flowing into a chemical reactor. The inlet…

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Q: How diffusivity is dependent on temperature and pressure

A: gIVEN THAT we have to write how diffusivity is dependent on temperature and pressure

Q: Question) Draw the following by Chemdraw and write the Molar Mass?

A: 1) 4-chlorobenzaldehyde molar mass = 140.57 g/mol 2) 2-Pyrrolecarboxaldehyde molar mass = 109.13…

Q: A heat exchanger uses medium pressure steam at 10 bar and 350 C to heat cyclohexane vapor from 100 C…

A: Given, the mass flow rate of steam, m3 = 32 kg/h The pressure of steam, P3 = 10 bar The temperature…

Q: The graph for the calibration of an Ostwald viscometer is shown below. n pt (cm²/s²) (0.0, 0.0005)…

A: For a detailed solution, please see the attached files.

Q: 8. Expound Newton's Law of Cooling/Warming and site some example of its application to real life…

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A: Write the reaction as follow: A→ B   The molar flow rate of A, FA0 = 0.4 mol/s

Q: Saturated acetone vapor enters a heat exchanger always a rate of v1=1.30L/s at p1=1 atm and emerges…

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Q: volatility of benzene relative to toluene can be considered constant and equal to 2.5, determine:…

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Q: Calculate V and Z for compound X at T = 298.15 K and P = 12 bar given that B = -140 cm3/mol and C =…

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Q: Question From the following data for water: Determine its heat of vaporization (AH vap.) Temperature…

A: Note: We are authorized to answer one question at a time, since you have not mentioned which…

Q: The VP of water at 25oC is 23.8 mm Hg. The average heat of vaporization between 25o – 40oC is about…

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Q: How many moles of carbon dioxide

A: Given, Mass of substance of CO2 , m = 250 g Molar mass of CO2 , M = 44.01 g/mol We have to calculate…

Q: Professor Modyn's reactor produces 115.4115.4 mol/s of methanol by the stoichiometric reaction

A: C(s) + ½ O2(g) --> CO (g) ΔHf1 = -110.53 kJ/mol ΔHf2 (H2(g)) = 0 C(s) + ½ O2(g) + 2H2 (g) -->…

Q: Metrics ): Soap-X was asked by their local wastewater treatment plant to reduce phosphorus discharge…

A: a) molar mass of Na3PO4 = 165 g/mol  Tank cleaning generates Na3PO44 = 3800 gal/yr density of Na3PO4…

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Q: Q.2: The combustion analysis using ORSAT apparatus, where the analysis indicated as 15% CO2, and…

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Q: Heat is transferred to 20 kg of air which is initially at 100 kPa and 300 K until its temperature…

A:

Q: Liquid n-Hexane + oxygen react to to form carbon dioxide + water vapor.  delta Hr= __? Kj

A: Liquid n-hexane reacts to form carbon dioxide and water vapor.

Q: If you burn methane with 50% excess air, what would be the flue gas composition?

A: Given  Combustion of methane with 50% excess air To find Flue gas composition

Q: Consider a system of air with a molar volume of 0.02479 m³/mol which undergoes thermodynamics…

A:

Q: Complete the following Initial Change Equilibrium table using variable x: Given the initial…

A: given information: initial moles: A=1 M B=3 M C=2 M and the reaction,A+2B↔2C Q<Kc we have to…

Q: 1- One face of a copper plate 13 cm thick (k-200 W/m2C) is maintained at 673 K and the other face is…

A: given = x = 13cm = 0.13 m K = 200 W/m^c T1 = 673K and T2 = 373K  area = 2500 cm2 = 25m2 Q = -KAdTdxQ…

Q: A brine solution is heated from 50°F to 90°F in a one shell pass (hot water)-two tube pass (brine)…

A: Given that for a one shell pass (hot water)-two tube pass (brine) heat exchanger- Initial…

Q: 7-14 A chemical company has a total income of $1 million per year and total expenses of $600,000 not…

A: Given data are as follows: Annual income of chemical company = $1 million Total expenses of the…

Q: A tubular reactor for the isomerization of n-butane to isobutane is to be installed in a dedicated…

A:

Q: It is required to prepare 1250 kg of a solution composed of 12 wt.% ethanol and 88 wt.% water. Two…

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Q: O2 (A) is diffusing through Carbon Monoxide (B) under steady-state conditions, with carbon monoxide…

A: Given thatPT =105  Nm2PA1 =13 x 103  Nm2PA2 =6500  Nm2T =0 C =273.15 kDAB  =1.85 x 10-5  m2sz =0.002…

Q: 8. A nozzle is a device for increasing the velocity of a steadily flowing stream. At the inlet to a…

A:

Q: 8--The reactor from uniform carbide and graphite as a cylinder rod with diameter of 12 mm. The…

A: Given details: A cylindrical rod with heat heat generation: diameter,d=12 mm=0.012 m radius, R=6…

Q: 6. A gas is compressed from an initial volume of 0.42 m³ to a final volume of 0.12 m³. During the…

A:

Q: 4. Which property of a system increases when heat is transferred: (a) at constant volume, (b) at…

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Q: . Calculate AH°298, AS°298, and AG 298 for the combustion of 1 mole of nonane, C9H20 128.2 g/mol).…

A:

Q: b. Estimate the heat of vaporization of ethanol at 75°C using the Clapeyron Equation.

A:

Q: 6. A hydrocarbon is burned with dry air. There is no atomic oxygen or water in the fuel. Analysis of…

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Q: Exhaust gases from cars contain CO in the amount of 1% by volume. Express the concentration in mg/m3…

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Q: en in the table below. Temperature (K) 110 120 tropy change: Pressure (MPa) 0.3057 Incorrect 0.5 1.0…

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Q: How many moles of the substance are in the following amounts? a) 2.50 g of lead b) 5.00 g of KBr…

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Q: Answer the following questions related to calculating the fugacity and fugacity coefficients of…

A: Given, The pressure of ammonia gas, P = 60 bar The temperature of the ammonia gas, T = 1000 °C =…

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Q: Exercise Determine AH and AS for the auto-ionization of water. 2 H₂O (1) Temperature (°C) 0 25 35 40…

A:

Q: Question. Determination of percent water (%H₂O) in hydrated FeSO4nH₂O is demonstrated in General…

A: First of all the given table has to be completed using simple calculation methods. Molar mass of…