A sample of 10 g of liquid benzene at its boiling point is vaporised using a 12 V, 0.5 A electric supply. The normal boiling point and latent heat of vaporisation of benzene are 353.2 K and 30.8 * 10 3 kJ/kmol respectively. Determine: (a) the change in internal energy, (b) the time required for complete vaporisation.

Q: Which pure molecular substance will have the lowest vapor pressure at 25 oC CH3CH2CH2Cl CH3Cl CH3...

A: The vapour pressure of a pure molecular substance is a function of temperature and the intermolecula...

Q: 3.30 mol of an ideal gas is expanded from 418 K and an initial pressure of 6.80 bar to a final press...

A:

Q: How many electrons are transferred in the following process, given the unbalanced reaction? PbO2 (s)...

A:

Q: uuying the two reactions shown in the table below. In each case, he fills a reaction vessel with som...

A: Temperature of the reactions, T = 140°C = 413 K The temperature and pressure of both the reactions a...

Q: Ammonia diffuses through Nitrogen gas under equimolal counter diffusion at a total pressure of 1.013...

A: Given data: Total pressure=1.013×105Pa Temperature =298K Diffusion path=0.15m Diffusivity=2.3×10-5m2...

Q: Calculate ΔS, ΔStot, and ΔSsur when the volume of 200. g of CO initially at 273 K and 1.00 bar incre...

A: A reversible process is defined as if a change in brought out in such a way that the process could b...

Q: Liquid food is heated in a tubular heat exchanger. The inner pipe wall temperature is 110 ° C. The...

A: Giveninner temperature of pipe=110oCdiameter of pipe=25 mm=25×10-3minitial temperature of product=7o...

Q: A large balloon of volume 1500 m³ is filled with helium gas at a pressure of 120 kPa and temperature...

A: Given that initial pressure of helium in balloon [P1]=120 kPa initial temperature of helium in ballo...

Q: Which one of the following subshells cannot exist according to the quantum theory:      3f,  4d,  20...

A: each orbit consists many subshells ,number of which varies according to the orbital numers It can be...

Q: QUESTION 39 A flexible vessel contains 1.5L of gas at sea level, where the pressure is 1.0 atm. What...

A: Given that, temperature remains constant throughout, thus, ideal gas is valid in this case and the p...

Q: Steam expands in a turbine from 6 MPa and 500°C to 0.2 MPa and 150°C at a rate of 1.2 kg/s.Heat is l...

A:

Q: You desire to produce a 2,000 kg batch of window glass (composition: 20 wt. % Na2O, 10 wt. % CaO, a...

A: Given: Window glass 20 wt. % Na2O, 10 wt. % CaO, and 70 wt. % SiO2 Final Glass Quantity = 2000 Kg  

Q: In general, as you go across a period in the periodic table from left to right:                     ...

A: Periodic table Properties: Movement ( L>>R) (A) Atomic Radii (B) Electron Affinity (C) First I...

Q: Three fluid mixtures are given below. For each mixture, chose a model that you think is best suited ...

A: To state  the suitable models for VLE analysis of the following mixtures at 298K and briefly explain...

Q: A 10.0-liter flask contains 1.013 grams of oxygen and .572 grams of carbon dioxide at 180C. What are...

A: Given that, The volume of the flask V = 10 L Temperature T = 180oC = 453.15 K Mass of Oxygen = 1.013...

Q: Liquid food is heated in a tubular heat exchanger. The inner pipe wall temperature is 110 ° C. The...

A: (a) Write the equation for Reynolds number as follows: Re = Duρμ     .....1   Given, inner diameter ...

Q: A saucepan 30 cm in diameter is placed on the stove. The pot is made of stainless plate (k = 15 W /...

A: Given: diameter of saucepan d = 0.3 m          Area = A = π4×d2= π4×0.32                       A = 0...

Q: Distinguish between thermosetting plastics, thermoplastics, and elastomers?

A: thermoplastic: they have a linear molecular chain and are held together by relatively weaker bonds. ...

Q: A reciprocating cylinder contains water at a density of 0.01019 kg / liter at a pressure of 0.8 mpa....

A:

Q: In a 2-shell and 16-tube passes heat exchanger, water (Cp = 4180 J/kg·°C) is used to cool hot oil (C...

A: Given data: For water: Cp=4180 J/kgoC Ti=25oC m=2kg/s For oil: Cp=2100J/kgoC Ti=180oC m=2.5kg/s To=7...

Q: Air with a mass flow rate of 600 kg/s is compressed at constant temperature with an initial pressure...

A: (a) It is to be proved that the volume added/lost due to the compression process is 6.465 m3.   As t...

Q: Heat Transfer Question

A:  Assumption: Stoke's law is valid i.e. Flow is laminar and Re < 1; Given:              ρA = 555.6...

Q: A 20m long, 1cm inner diameter, horizontal garden hose with a roughness of ɛ = 0.2 mm is fastened to...

A: Given that  diameter of hose[d1 ]=1 cm                               =10-2 m velocity of water in th...

Q: What is the purpose of soaking fresh cucumbers in a jar of vinegar (5% acetic acid)?  What does the ...

A: Vinegar is made by the process of fermentation and is the combination of water and acetic acid (CH3-...

Q: For liquid ammonia at 225.15K & 1 bar, volume expansivity 60 K-1, isothermal compressibility 25 bar1...

A: Isothermal compressibility: Isothermal compressibility mathematically defined as κT=-1V∂V∂PT...........

Q: A gaseous mixture consisting of 0.508 grams of H2(g) and 18.7 grams of N2(g) occupies 10.0 liters at...

A:

Q: Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 200 ° C. Th...

A: In conduction mode of heat transfer the rate of heat transfer is calculated by the Fourier's law. Th...

Q: Problem and solution for water-in-oil emulsion separator?

A: Problems/Challenges associated with Water-in-Oil (WIO) emulsion separators Separation methods shoul...

Q: What is the concentration of the solution of acetic acid if it is 3.00% ionized?

A:

Q: 9. For a reversible first-order reaction AB В k2 ki = 102 s' and [B]eq/[A]eq = 4. If [A]o = 0.01 mol...

A: Given data: The rate constant for the forward reaction = 10–2 s–1 The ratio of concentration of B an...

Q: C,D

A: As you have asked for part C&D so answer is-

Q: f & g domain & range please

A: The function has many additional calculative advantages in Chemical Engineering Discipline.. 

Q: 49. A block of unknown metal has dimensions: 1 cm x 1 cm x 3 cm. The block's density is 8000 kg/m³. ...

A: Given data: Dimension of unknown metal=1cm×1cm×3cm Block's density=8000kg/m3 We need to calculate th...

Q: Liquid mercury and gaseous oxygen combine in the reaction below to form mercury (ll) oxide: 2Hg(g)+O...

A:

Q: A saucepan 30 cm in diameter is placed on the stove. The pot is made of stainless plate (k = 15 W /...

A: Given: diameter of saucepan d = 0.3 m          Area = A = π4×d2= π4×0.32                       A = 0...

Q: Problem 2. In a fossil fuel power plant the chemical energy stored in fossil fuels such as coal, fue...

A: Thermal power plant is used to produce electricity from fossil fuels. After burning fossil fuels or ...

Q: CONSIDER A ABSORPTION OPERATION IN INDUSTRY AND EXPLAIN IN DETAIL THE FLOW DIAGRAM THE BASIC SYMBOLS...

A: It is required to explain in detail about the absorption operation in the industry.

Q: Chemical Engineering Question

A:

Q: 11. If a first-order reaction has an activation energy of 104,600 J/mol and a pre-exponential factor...

A:

Q: Liquid food is heated in a tubular heat exchanger. The inner pipe wall temperature is 110 ° C. The...

A:

Q: Which of the following is the definition of diffusion coefficient? Select one: The rate of a molecul...

A: Diffusion coefficient is defined as the ratio of molar flux to concentration gradient. D = N∇C   For...