Question 9! This is applied thermodynamics (please consider equations for thermo)! Please make sure work is written NEATLY and the answer is in the right units! Thank you!NO TUTOR HAS GOT THIS RIGHT :( 9. Calculate the specific work done by the environment on a spherical parcel of air at 105 Pa over a 10-sec period, if theinitial radius of the parcel is 1 m, and it decreases at a rate of 10 percent everysecond.

Answered: Image /qna-images/answer/4e4807db-0f6a-43f2-a939-e3d740f5b865.jpg

9. Calculate the specific work done by the environment on a spherical parcel of air at 105 Pa over a 10-sec period, if the initial radius of the parcel is 1 m, and it decreases at a rate of 10 percent every second.

9. Calculate the specific work done by the environment on a spherical parcel of air at 105 Pa over a 10-sec period, if the initial radius of the parcel is 1 m, and it decreases at a rate of 10 percent every second.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.3P

See similar textbooks

Related questions

Q: Q1/ The air circulation in a large room by using fan (10 hp). Assuming a well-insulated, sealed room…

A: Given, Large room is well-insulated. Hence, heat transfer to and from room is zero. Hence, δQ = 0.…

Q: n a piston-cylinder assembly, a gas with an initial pressure of 600 kPa and a volume of 0.05 m 3…

Q: Warm air is contained in a piston-cylinder assembly oriented horizontally. The air cools slowly from…

Q: Air is contained in a vertical piston-cylinder assembly fitted with an electrical resistor. The…

A: Heat: Heat is energy that travels between two or more bodies by virtue of temperature difference…

Q: Determine the change in internal energy for a 6cm cube of iron with a mass of 1.7kg as it is heated…

A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: A four -cylinder Carnot engine having a 90 x 120-mm bore and stroke operates between 420 deg C and…

A: SOLUTION FOR 1ST QUESTION GIVEN DATA BORE D=90mm STROKE L=120mm HIGHER TEMPRATURE =420'C LOWER…

Q: At high altitudes, pressure cooker is preferable for cooking because the boiling point of water (a)…

Q: 1 m² at 0 ⁰C and 1 atm pressure during a 244 hour operation at 8 m/s wind speed. Calculate the…

A: Given Data: The given area, A = 1 m2. The temperature, T = 0°C. The pressure, P = 1 atm. The…

Q: A monatomic ideal gas initially fills a V0 = 0.35 m3 container at P0 = 75 kPa. The gas undergoes an…

Q: On a summer day in Phoenix, Arizona, the inside room temperature is maintained at 68° F while the…

A: Given, TiF = 68 °FToF = 110 °F Here, o and i subscripts represent outdoor and indoor temperatures…

Q: What is the temperature of a system in thermal equilibrium with another system made up of water and…

A: A system is said to be anything under study. A surrounding is anything that is external to the…

Q: A mixture of liquid and gaseous water is a pure substance, but a mixture of liquid and gaseous air…

A: As there are some chemicals present in the gaseous air which are not soluble in the liquid.

Q: A fan is to accelerate quiescent air to a velocity of 10 m/s at a rate of 4 m3/s. Determine the…

A: Giventhe volume flow rate of tha fanv=4m3/svelocity of air caused by fanV=10m/sthe density of air…

Q: The initial temperature of the cube with a density of 700 kg/m³ and a side of 25 cm is 400K. It is…

Q: 8. If the dew point and temperature are both 0°C, and the pressure is 850 hPa, at what rate [K/km]…

Q: A cubic object (SG=0.893) with a side length of 10 cm is suspended between two liquids (fluid 1 and…

A: Side length of the cubic object, a= 10 cm Specific gravity of the cubic object, SGobject= 0.893…

Q: What is dynamics and how does dynamics affect our daily life

A: Dynamics

Q: Calculate the mass of air at a temperature of 25 ° C and a pressure of 0.1 MPa in a room measuring…

A: Temperature T=25 C Pressure P=0.1MPa Room Dimensions 7m x 5m x 3m. To find mass of air

Q: Calculate the total heat transfer for 12 hours through an insulated window that measures 4 ft × 7…

A: Since the window is insulated, there should not be any transfer of heat between system and…

Q: Consider a case in which the air inside the pressurized cabin of a jet transport flying at some…

Q: Discuss the environmental impact of fixed and rotary aircraft during flight

A: Both fixed and rotary aircraft cause severe impact on environment. They cause noise pollution; they…

Q: A 26.5 ft - capacity vessel contains air at a temperature of 62.6°F and a pressure of 3 bar. The…

Q: Determine the MW and specific heat ratio of a gas whose Cv=1.386 kJ/kg.K and R= 0.485 kJ/Kg.K…

Q: 14A) is between moving surfaces that are separated by a layer of thuid. a. Dry friction. O b. Fluid…

A: We are suppose to solve only one question. Please post other question as a separate question.

Q: A 5 kg object with rectangular cross-section is placed on a circular plate. Radius of the circular…

A: Consider the diagram shown below for the given system. Area of contact of the plate and the weight…

Q: A mass of 300kg of oil is cooled in 1 hour from 70 celcius to 35 celcius in a cooler consisting of a…

Q: Determine the work interaction when a gas absorbs 12 kJ of heat without a change in its absolute…

Q: A volume of air (assumed to be an ideal gas) is first cooled without changing its volume and then…

Q: From the list below choose the law that defines the rate of heat transfer by convection: a) lé| =…

A: The transfer of heat from one body to another by the movement of fluids is called the convection…

Q: Define the control volume can involve fixed, moving, real, and imaginary boundaries.

A: Real Boundary: In a real boundary, no mass transfer is possible. Example: Cylinder pistons, walls of…

Q: 4. Determine the difference between the PMV of men and women occupants when the dry-air bulb…

A: Ladies are bound to feel debilitated when they go into the space. Though men can get ailment when…

Q: Air is contained in a vertical piston–cylinder assembly fitted with an electrical resistor. The…

Q: All air is removed (vacuumed) from a 2 liter closed container that contains 200 ml of Liquid A and…

Q: Bodies with relatively large thermal masses can be modeled as thermal energy reservoirs.

A: Thermal Reservoirs: A thermal reservoir is a thermodynamic system having a high heat capacity so,…

Q: A fan is to accelerate quiescent air to 3m/s at a rate 81m^3/s. If density of air is 1.7kg/m^3, the…

A: Discharge is the amount of flow per unit time and the mass flow rate is the quantity of air flow in…

Q: Two thermally insulated cylinders, A and B, of equal volume, both equipped with pistons, are…

A: Given information: The initial temperature of system A=T…

Q: On the bases of the units of the quantities involved, show that the mass flow rate of air (in kg/s)…

A: The mass flow rate is written as follows: ṁ = M/t……. (1) Here, M is the mass, and t is the time.…

Q: One way to improve the fuel efficiency of a car is to use tires that have a lower rolling…

A: Consider a car that gets 35 mpg on high rolling resistance is driven 15000 miles per year for a…

Q: A fan is to accelerate quiescent air to a velocity to 0 m/s at a rate of 19 m3/s. If the density of…

A: According to the information we have a fan with the velocity of airflow V is 0, rate of flow of air…

Q: Q5/A 400 m light-colored swimming pool is located in a normal suburban site, where the measured wind…

Q: 1) Determine the MW and specific heat ratio of a gas whose Cv=1.386 kJ/kg.K and R= 0.485 kJ/Kg.K

A: Given data: Cv=1.386 kJ/kg.KR=0.485 kJ/kg.K Need to determine the specific heat ratio and molecular…

Q: Consider two systems, one at a constant temperature t and the other at a constant temperature T (t >…

A: Energy flows between two systems because of difference of total energy head...

Q: 11- A horizontal cylinder is fitted with a frictionless piston has a cross section area of 0.2 m².…

Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

Question 9! This is applied thermodynamics (please consider equations for thermo)! Please make sure work is written NEATLY and the answer is in the right units! Thank you!

NO TUTOR HAS GOT THIS RIGHT :(

9. Calculate the specific work done by the environment on a spherical parcel of air at 105 Pa over a 10-sec period, if the
initial radius of the parcel is 1 m, and it decreases at a rate of 10 percent every
second.

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

In the summer, when the air motion is increased body heat loss is also increased. True or false ?
A fan is to accelerate quiescent air to 3m/s at a rate 81m^3/s. If density of air is 1.7kg/m^3, the minimum power in watts that must be supplied to the fan is
1 m² at 0 ⁰C and 1 atm pressure during a 244 hour operation at 8 m/s wind speed. Calculate the amount of energy that can be produced in the area. (ρ=1,293kg/m³)
What is a blackbody? How do real bodies differ from a blackbody?
1. A four -cylinder Carnot engine having a 90 x 120-mm bore and stroke operates between 420 deg C and 30 deg C . The engine rejects 20 KJ of heat to the atmosphere while running at 320 rpm . Determine the mean effective pressure in KPa 2.One kg of gas at 240 OC,expands adiabatically , so that its volume is doubled and the temperature falls to 115 OC . The work done during expansion is 90 KJ.Determine the molecular weight of this gas .
Air is blown into the electronic parts of a computer from one opening by the fan, and air is expelled from another opening. The air blown in is blown continuously (steady-state) at a temperature of 20 ℃ and a pressure of 1 atm. In order to keep the noise level low, the blow-in speed of the air is a maximum of 1.3 m/s. In addition, the temperature of the exhausted air is limited to 32 ℃. While the electronic systems of this computer consume 80 kW of energy, the fan system consumes 18 kW of energy. Calculate the minimum required opening area at the air inlet when heat transfer with the environment, changes in kinetic energy and potential energy are neglected.
In which medium does a sound wave travel faster: in air at 20°C and 1 atm or in air at 20°C and 5 atm?
At room temperature, what fraction of the nitrogen molecules in the air are moving at less than 300 m/s?
The infinitisimal work done when expanding a liquid surface is given by ??=??A Which of the following Maxwell relations is derived from the internal energy? see image for options
air at a dry ball temperature of 95 degrees Celsius and RH 5% is passed over the cooling coil so that the temperature of the air dry ball becomes 50 degrees Celsius. how much heat is released from the air in the process? = (kj / kg)
find the driving pressure for a stack that has a height of 18 m and carry a hot gas mixture with an average density of 1.2 k/m3. If you know that the total heat rejection by the stack is 1450 KJ and the c, of the hot gas is 1.8 KJ/Kg.K while the hot gas inlet and outlet temperature are 650 K and 500 K respectively. Assume the hot gas pressure as 2.3 bar while the ambient pressure is 1 bar.
Calculate the thermal resistance due to convection for the following situations:a. w arm water with h = 200 W⁄m2 .Kb. warm air with h = 10 W⁄m2 .Kc. warm moving air (windy situation) h = 30 W⁄m2 .K