Two infinitely long parallel disks are in a vacuum. Disk 1 is a blackbody maintained at 25 °C. Disk 2 is di ffuse and opaque and also maintained at 25 °C. The net radiation leaving disk 1 is than that leaving disk 2. disk 1 disk 2 greater than less than the same as not enough information

Q: what is pseudo-Steady-State (PPS) approximation

A: The concept of pseudo-steady-state approximation is widely used in reservoir engineering. PPS can al...

Q: The result of a gas chromatographic test performed at FUPRE Laboratory on a gas sample collected fro...

A: Dear User! The question contains multiple subparts. As per our authoring guidelines, we have answere...

Q: For the cycle shown below, describe all the steps of the cycle.

A: Give

Q: A mixture of propane (C3H8) and butane (C4H10) is burnt with pure oxygen gas in excess in a furnace....

A: Givencombustion of propane and butane with pure oxygen in excessmolar  composition of stack gas , 47...

Q: Water flows through a 30 mm i.d. pipe at atmospheric pressure. The velocity of water at the center o...

A: Water flows through the pipe at atmospheric pressure. The pressure difference is measured by the pit...

Q: [Gas Absorption/Scrubbing] In a plastic manufacturing concern, air is used to dry plastic sheets in ...

A: here desorption of acetone is taking place from air using water as solvent- rate at which air-aceton...

Q: 15) An adiabatic process occurs for all types of systems.

A:

Q: A 25.5-L glass vessel is to contain 1.42 g moles of nitrogen. The vessel can withstand a pressure of...

A: Assume Nitrogen gas (Given)- Ideal gas Volume=25.5L moles=1.42 g mole P=29000+101325 Pa = 130325 Pa

Q: 4. Why is it easier and cheaper to refine paraffinic crude oils?

A: Asked; Why it is easier and cheaper to refine paraffinic crude oil   NOTE; As per our guidelines we ...

Q: A gas mixture at 27oC and 750 t0rr c0ntains acet0ne vap0r with 70% saturati0n. Calculate the tempera...

A: Given, Ti = 300.15 K Pi = 750 mm Hg  Relative humidity,RH = 70% Basis: 1 mole of inlet air vapor pre...

Q: What is the molecular weight of a gas, initially at 29°C and 120 kPaa if it has a density of 1.6kg/m...

A: GivenTemperature of gas =29oC, or 302 KPressure of gas=120 kPa, or 120×103 PaDensity of gas=1.6 kg/m...

Q: 2. Why is °API used instead of specific gravity to describe crude oil? 3. How could physical propert...

A: 2.  API gravity is used instead of specific gravity to describe crude oil so that most values would ...

Q: The radius of an Ostwald viscometer is measured as 168 µm. The time of flow of liquid is 19.86 secon...

A: Given that radius  = 168 um time  = 19.86 sevolume = 2.864 ccpressure  = 0.98 atm L = 2.34 cm

Q: Q2

A: The heating rate is dependent on given source of heat ,the properties of fluid which is to be heated...

Q: Water exits a pipe as a free jet and flows to a height h above the exit plane as shown in Fig. P3.64...

A: Bernoulli's theorem is to be applied in this case. It states that the summation of pressure head, ve...

Q: Methanol (CH;OH) is fed into a furnace and burning with excess air. The feed rate of the methanol en...

A: a) The reaction of methanol with air to give carbon dioxide and water is given as follows: CH3OH +32...

Q: Choose the  correct option  When do you use a differential material balance? a. Group of answer op...

A: the correct statement is to be chosen from the given options for the statement 'when do you use a di...

Q: Pry nitrogen is bubbled though benzene at 800 mmHg and 323K at a rate of 100m per minute. Nitrogen i...

A: Given that:At entering P = 800 mm HgT =323 k Q = 100 m3 /minAt leaving P = 740 mm HgT =313 KQ = 138....

Q: Pure propane(C3Hg) is burnt with an excess of air to give the following analysis of combus- tion pro...

A: The propane is burnt in presence of excess air. Basis: 100 moles of the combustion product The combu...

Q: What is the percentage difference between the result obtained using the Antoine equation and the usu...

A:

Q: 18. Figure below shows an open water manometer for the measurement of the pressure of a pipeline in ...

A: S.G  of oil  =0.9 barometric pressure  = 100 Kpadensity of water = 1000 kg /m3

Q: Nuclear waste insi de a metal shell generates thermal energy. At steady-state, the amount of energy ...

A: Thermal energy is generated from the nuclear waste inside a metal shell.

Q: A solution containing 10.0 % sodium sulfate by weight is cooled to 32- F, where the solid phase is t...

A: Basis: 100 lb of solution Na2SO4=10 lb Let F=feed, M=mother liquid, C=crystal Overall mass balance, ...

Q: 1. For each of the environments below: (a) identify your system and surroundings and (b) predict whe...

A:

Q: When evacuated or empty, a gas density bulb weighs 29.3215 g. First, CO2 gas was used to fill the bu...

A: The gas in both cases is assumed to follow the ideal gas law. The weight of the gas can be determine...

Q: C. Calculate the total enthalpy change using the Hess' Law. 2H:0 2H2 + O: +572 KJ/mol 2HF H2 + F: +5...

A:

Q: A huge chamber is filled with dry N2 at 27°C and 101.3 kPa. The room is filled with water. The tempe...

A: Given: Dry N2 at 27 °C and 101.3 kPa Room filled with water, N2 saturated with water vapor

Q: The following initial rate data are for the reaction of tertiary butyl bromide with hydroxide ion at...

A:

Q: A wet paper pulp contains 75% water. After 100 kg of water removed in a dryer, it is found that the ...

A: Let us see what data is given: Amount of water in wet paper pulp = 75% Amount of water removed  = 10...

Q: In a compost pile, the biochemical conversion process from waste to compost is accompanied by heat g...

A:

Q: 2.3.2 Floating of Wood on Water A rectangular piece of wood (density = floats on water (density = 10...

A: The rectangular piece of wood floats on the water surface. part of wood goes inside the water due to...

Q: A number of casting alloys have very high lead contents;however ,the pb content in wrought alloys is...

A: The cast alloy are made be melting in a furnace and then by allowing to cool in a mold but the wroug...

Q: 90 gmol/min of a gas stream containing 25% ethane (C2H6) and 75% methane (CH4) is fed into a continu...

A: Given data: Molar flow rate of feed = 90 mol/min Composition of feed is, Methane = 75 % Ethane = 25 ...

Q: using the steam table, at initial pressure of 0.046bar and final pressure of 0.107bar find the:   ...

A: Given that :   P1 = 0.046 bar P2  = 0.107 bar

Q: 3.50 moles of an ideal gas is expanded from 450 K and an initial pressure of 5.00 bar to a final pre...

A:

Q: A swine producer wants to know what combination of rice bran (13% CP) and a 40% CP complete pig supp...

A: CP is the crude protein present in a sample. Rice bran and pig supplement are mixed to obtain fatten...

Q: You are planning to purchase the same brand of heat exchanger, C with the existing two exchangers, A...

A: Given Data : It is said that the client plants to buy a heat exchanger  C Heat exchanger purchased i...

Q: Chemisorption can be modeled by the Langmuir and Temkin adsorption isotherms.

A: Given that  For the chemisorption ,which adsorption isotherms valid 

Q: A 1000ft³ storage tank is filled with natural gas at 80°F and 1 atm pressure. The tank is flushed ou...

A: The storage tank is filled with natural gas.  The tank is flushed with nitrogen at a constant rate. ...

Q: Problem 2 An adult takes about 12 breaths per minute, inhaling roughly 500 mL of air with each breat...

A: In human body oxygen concentration should remain constant. The oxygen travels from air to blood. Car...

Q: Methanol (C) is formed from carbon monoxide (A) and hydrogen (B) in the gas-phase reaction co + 2H2 ...

A:

Q: Determine the enthalpy of combustion of liquid octane (C8H18) at 25°C and 1 atm, using the enthalpy ...

A: The enthalpy of formation at 25°C and 1 atm is -393,520kJ/kmol for CO2, -285,830 kJ/kmol for H2O, an...

Q: 3) Ammonia (considered to be ideal gas, 1 mole) initially at 25°C and 1 bar pressure is heated at co...

A:

Q: It takes 5 minutes to reduce a certain reactant to 75% its original value, following a third-order r...

A:

Q: In a steady-state reactive process, O2 enters as a reactant at a rate of 28 mol/s. If it is consumed...

A: Given that: The process is steady state reactive process. For this process, the accumulation term is...

Q: 13.9 mole Boron Trichloride (BCl3) enter a reactor with 22.3 mole water for the following reaction: ...

A: Boron trichloride reacts with water to give hydrochloric acid fumes and boric acid. A significant am...

Q: o prepare a delicious banana milk on an industrial scale, there is an experimental process that cons...

A: Chemical process are complex in nature. These consists of several unit process and unit operations. ...

Q: A concentration cell based on the following half reaction at 316 K Mg2+ + 2e- –→ Mg; SRP = -2.37 is ...

A: Given that: Temperature, T= 316 K Oxidation (Anode) reaction:             Mg → Mg+2  + 2e-      E⁰ =...

Q: A mixture with 45% A by mass and the remainder B is to be evaporated into two output streams, such t...

A: Given data: Composition of feed is as follows: A = 45 % by mass B = 55 % by mass Composition of top ...

Q: Choose the correct answer 100 kmol / s of a gas mixture consisting of 60% methane, 10% ethane and 3...

A:  for given statement, we have to find correct option 100 kmol / s of a gas mixture consisting of 60%...