Balloons now are used to move huge trees from their cutting place on mountain slopes to conventional transportation. Calculate the volume of a balloon needed if it is desired to have a lifting force of 1000 kg when the temperature is 290 K at 0.940 atm. The balloon is to be filled with helium. Assume that air is 80 mol % N2 and 20 mol % 02. Ignore the mass of the superstructure and propulsion engines of the balloon

Q: 2. Usually weather data is collected by releasing He or H2 filled balloons carrying the required…

A: GIVEN Radius of Sphere= 1m TO CALCULATE Work done

Q: Chemical energy is O a. a. The portion of the internal energy of a system associated with the change…

A:

Q: Example 7.2: A simple U-tube manometer is installed across an orifice meter. The manometric fluid is…

A: U tube manometer is the simplest pressure measuring devices and are used for measuring low pressure…

Q: How the concept of entropy (or information) is used to solve engineering problems in Chemical…

A:

Q: A system is a connection of equipment connected together to perform a specific function. The system…

A:

Q: An isochoric process, also called a constant-volume process, an isovolumetric process, or an…

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

Q: How much is 15 lbs of a liquid propane tank in SCF? What is the heating value of the propane tank?…

A: The enthalpy of combustion of propane gas where all products return to the standard state, for…

Q: Shown below is an inverted U-tube which is used to drain alcohol from a tank reservoir. The bend of…

A:

Q: Problem #3. Estimate the: (a) arithmetic mean; (b) quadratic mean; (c) cubic mean; (d) geometric…

A: Dear User, According to bartleby rules , we can only answer three subparts, kindly post other parts…

Q: When the fluid flows only in the z direction in the cylinder, (constant density and viscosity and…

A: uz is only function of r.ur and uθ is zero.gz=0. we have a steady state condition. ∂uz∂t=0 ∂uz∂r is…

Q: [1]- Submerging a cube (1 ft a side) under water (10 ft below) as showing: a) Fo required to hold…

A:

Q: Figure shows conditions for the top tray of a distillation column.Determine the column diameter at…

A: Given data: Molar flow rate of vapor from the top tray = 335.6 lbmol/h Operating velocity of vapor =…

Q: A sample unknown gas expands in volume from 1.4 L to 3.6 L at constant temperature. Determine the…

A: Given V1=1.4L V2=3.6L P=0.3atm Find Work, W(J)

Q: The Volume of Crude oil or Gas measured at reservoir conditions (Temperature and Pressure) a. False…

A: Answer :- True

Q: None

A:

Q: Applications of Differential Equations of order one (Newton’s Law of Cooling )

A: According to Newton's law of cooling, T(t) = Ts + (Ts-To)e-kt            (1) Here, T(t) is the…

Q: 1. Quartz and pyrites (FeS2) are separated by continuous hydraulic classifications using free…

A: In the settling of particles, the denser particles settle in the hydraulic classifier and other…

Q: Figure 1 describes a sequence of activities that takes place during solvent extraction. Explain…

A: In figure A A= mass of carrier liquid in feed for stage 1 from which solute is to be extracted in…

Q: Thermodynamics is the study of the relations between heat, work, temperature, and energy. Choose a…

A: where, dm1/dt =rate of mass in dm2/dt=rate of mass out therefore, dq/dt = rate of heat addition to…

Q: The condition for entrainment is O a. The entire mass of vapor may boil over into the liquid outlet…

A: Answer: d. The entire mass of liquid may boil over into the vapor outlet

Q: Q3/A: Consider the interval from 21 F to 85 F. a. Calculate the equivalent temperatures in "C and…

A: Given:

Q: Diameter of a container A is 6 cm and another one B is 10 cm and the same liquid is boiled in both…

A: To state whether the given statement is true or false Diameter of a container A is 6 cm and another…

Q: Acetone at 70°C (viscosity = 0.00042PA-s, density = 1000kg/m) is passed through a zeolite membrane…

A: In membranes, the flux is the permeate amount passed through membrane in unit time. This is…

Q: Evaluate the change in temperature from point A to E, with regard to heat.

A: In this graph, we can see that, At point A, phase is vapour or gas and temperature is decreasing…

Q: A thermometer reading 18 degrees Celsius is brought into a room where the temperature is 70 degrees…

A: Given data: Initial temperature of thermometer = 18 0C Temperature of room = 70 0C Temperature of…

Q: Enzyme activity as related to temperature: Describe in your own words what two different processes…

A: Introduction Rate of enzyme catalyzed reactions increases with Increase in temperature up to a…

Q: QI: Determine the pressure difference between points A and B in the figure. Benzene sp.gr.=0.88 and…

A:

Q: 1.25L

A: Given: V1 = 1.25L T1=100 deg C P1 = 760 torr P2 = P1 T2 = 25 deg C V2 = ? Use Gas Law PV = nRT where…

Q: Calculate the Z-value of water at the critical point using the Van Der Waals equation of state

A: The Z-value of water at the critical point is to be calculated.

Q: Determine the mass of Sodium (Na) produced when a 295 amp current flows for 8 hr through a cell…

A: Electrolysis is the process in which the flow of electric current through a substance makes a…

Q: A sealed container shown in Fig. Q1 contains 1.5 mol CO₂. The pressure is 2 bar and the temperature…

A: For the given figure (Q1),  Initial temperature, T1=270C=300 K Pressure, P=2 bar Volume of…

Q: Calculate the melting point of ice under a pressure of 10 MPa in Kelvin. Assume that the density of…

A:

Q: Mass transfer operations depend on molecules diffusing from one distinct phase to another and are…

A: Any two mass transfer operations is to be illustrated.