a thermocouple is move from from room temperature of 25 celcius into heated liquid at 40...
a thermocouple is move from from room temperature of 25 celcius into heated liquid at 40 celcius. Neglecting any sensor errors of the sensors what temperature will the sensor indicate after 45 seconds later given that the sensors has a time constant of 12 seconds?
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a thermocouple is move from from room temperature of 25 celcius
into heated liquid at 40...
Consider a situation in which a flask is half-filled with liquid water at room temperature. The...
Consider a situation in which a flask is half-filled with liquid water at room temperature. The partially filled flask is then sealed and given time to reach equilibrium. Which of the following statements are true? [Select all that apply.] After the flask reaches equilibrium, there will no longer be any movement of individual water molecules from the gas phase into the liquid phase. The rate of condensation decreases as the flask approaches equilibrium. The rate of condensation increases as the...
Project 2: Designing an Automated Liquid Mixing System (40 points) This project is to develop an...
Project 2: Designing an Automated Liquid Mixing System (40 points) This project is to develop an automatic liquid mixing system shown in Figure 2. This mixing system is controlled by the mixer motor (PLC output Y3) to mix two different liquids from two valves YO and YI). The mixing liquid is discharged from the valve controlled by Y2. X1 and X2 represent the low and high level sensor switch inputs, respectively. You need to complete the following tasks: (1) Normally...
At room temperature, the equilibrium number of vacancies in pure aluminum is one vacancy every 107...
At room temperature, the equilibrium number of vacancies in pure aluminum is one vacancy every 107 atoms. Pure aluminum is heated to 650 oC where it has 1 vacancy every 1000 atoms at equilibrium. The crystal is then rapidly quenched to room temperature to prevent any vacancy from escaping or from reaching the equilibrium number of vacancies. After this rapid quenching, the density is accurately measured and found to be 2.698 g/cm3. (i) Compare this density with the theoretical density...
Over a period of time, a hot object cools to the temperature of the surrounding air....
Over a period of time, a hot object cools to the temperature of the surrounding air. This is described mathematically by Newton's Law of Cooling T = C+ (To-C) e-kt, where t is the time it takes for an object to cool from temperature Toto temperature T, C is the surrounding air temperature, and k is a positive constant that is associated with the cooling object. A cake removed from the oven has a temperature of 207°F and is left...
An organic liquid is heated from 20°C to 40°C by hot water in a 1:1 pass...
An organic liquid is heated from 20°C to 40°C by hot water in a 1:1 pass shell-and- tube heat exchanger in counter-current flow. The inlet temperature of the water stream is 85oC and flows in the shell side. The organic liquid flows through a bundle of 200 tubes of outside diameter 21 mm with a wall thickness of 2 mm. The flows of the organic liquid and water are 40 kg s and 15 kg s1, respectively (a) Calculate the...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liq...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liquid phase? c) At what temperature does complete melting of the alloy occur? d) What is the composition of the last solid remaining prior to complete melting? Composition (at% N) 100 0 1600 2800 1500 1453°C Liquid 2600 Soldus line Liquidus line 1300 - 2200 120아ㅡㅡㅡㅡㅡ...
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the sa...
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the same both inside and outside the building. Finally, suppose the dew point outside is 40°F What is the dew point inside? What are the relative humidities inside and outside the building? (We are most comfortable if relative humidity is between 30% and 50%-This question shows why...
1. Consider a 1N4001 silicon diode used as a temperature sensor.The 1N4001 has an n1.43 calculate...
1. Consider a 1N4001 silicon diode used as a temperature sensor.The 1N4001 has an n1.43 calculate the temperature measured for the following conditions 2. Consider a IN4007 silicon diode used as a temperature sensor. The IN4001 has an n-1.4, calculate the temperature measured for the following conditions: . VD2-0.629V @ ID2 2mA 3. Consider a IN4001 diode used as a temperature sensor. Calculate the value of n when the temperature measured is 37°C for the following conditions: . Vin =...
Answer all parts complete to get 100% feedback!!! Problem 2 (30 Points A cylindrical container filled with liquid 225 kPa stored in a large room. The diameter of the the lido 25 kPa is initially...
Answer all parts complete to get 100% feedback!!!
Problem 2 (30 Points A cylindrical container filled with liquid 225 kPa stored in a large room. The diameter of the the lido 25 kPa is initially aniline-free and the room temperature container is 45 cm. The ambient air is id of the container is removed and the aniline evaporates slowly. a ndfiusion coefficient of aniline in air. Use the empirical equation aniline diffusion has not reached steady state at 15 cm...
4. Refrigeration and air conditioning is quite useful, but it is, in effect, a way to move heat f...
4. Refrigeration and air conditioning is quite useful, but it is, in effect, a way to move heat from a low temperature to a high temperature. Is this possible, given the second law? Answer the following questions below, for R-134a (a common refrigerant), and then state whether you believe refrigeration violates the second law, and why (or why not) a. R-134a arrives to the inside of the refrigerator that you are trying to keep cooled to T- 4°C. The air...
Project 2: Designing an Automated Liquid Mixing System (40 points) This project is to develop an automatic liquid mixing system shown in Figure 2. This mixing system is controlled by the mixer motor (PLC output Y3) to mix two different liquids from two valves YO and YI). The mixing liquid is discharged from the valve controlled by Y2. X1 and X2 represent the low and high level sensor switch inputs, respectively. You need to complete the following tasks: (1) Normally...
Over a period of time, a hot object cools to the temperature of the surrounding air. This is described mathematically by Newton's Law of Cooling T = C+ (To-C) e-kt, where t is the time it takes for an object to cool from temperature Toto temperature T, C is the surrounding air temperature, and k is a positive constant that is associated with the cooling object. A cake removed from the oven has a temperature of 207°F and is left...
An organic liquid is heated from 20°C to 40°C by hot water in a 1:1 pass shell-and- tube heat exchanger in counter-current flow. The inlet temperature of the water stream is 85oC and flows in the shell side. The organic liquid flows through a bundle of 200 tubes of outside diameter 21 mm with a wall thickness of 2 mm. The flows of the organic liquid and water are 40 kg s and 15 kg s1, respectively (a) Calculate the...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liquid phase? c) At what temperature does complete melting of the alloy occur? d) What is the composition of the last solid remaining prior to complete melting? Composition (at% N) 100 0 1600 2800 1500 1453°C Liquid 2600 Soldus line Liquidus line 1300 - 2200 120아ㅡㅡㅡㅡㅡ...
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the same both inside and outside the building. Finally, suppose the dew point outside is 40°F What is the dew point inside? What are the relative humidities inside and outside the building? (We are most comfortable if relative humidity is between 30% and 50%-This question shows why...
1. Consider a 1N4001 silicon diode used as a temperature sensor.The 1N4001 has an n1.43 calculate the temperature measured for the following conditions 2. Consider a IN4007 silicon diode used as a temperature sensor. The IN4001 has an n-1.4, calculate the temperature measured for the following conditions: . VD2-0.629V @ ID2 2mA 3. Consider a IN4001 diode used as a temperature sensor. Calculate the value of n when the temperature measured is 37°C for the following conditions: . Vin =...
Answer all parts complete to get 100% feedback!!!
Problem 2 (30 Points A cylindrical container filled with liquid 225 kPa stored in a large room. The diameter of the the lido 25 kPa is initially aniline-free and the room temperature container is 45 cm. The ambient air is id of the container is removed and the aniline evaporates slowly. a ndfiusion coefficient of aniline in air. Use the empirical equation aniline diffusion has not reached steady state at 15 cm...
4. Refrigeration and air conditioning is quite useful, but it is, in effect, a way to move heat from a low temperature to a high temperature. Is this possible, given the second law? Answer the following questions below, for R-134a (a common refrigerant), and then state whether you believe refrigeration violates the second law, and why (or why not) a. R-134a arrives to the inside of the refrigerator that you are trying to keep cooled to T- 4°C. The air...
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