What is the most common switch used in a heating/air conditioning system? a. Thermostat b. Pressure c. Push button d. Humidistat
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What is the most common switch used in a heating/air conditioning system?
a. Thermostat
b. Pressure
c. Push button
d. Humidistat
Thermostats are devices which is used in electronic devices such that they senses the temperature of the system and according to the measurement it will adjust the temperature to a possible performing temperature or to a threshold value depends on the system demands.
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- How would increasing the temperature of the compressed air affect the pressure in the can? Explain your answerQUESTION 18 Which of the following thermal variables is not a state function? a. Pressure b. Work c. Temeprature d. Entropy e. Internal EnergyIdentify whether the given situations are examples of conduction, convection or radiation. a. Solar ultraviolet radiation, precisely the process that determines the Earth's temperature. b. Ironing of clothes c. When you walk barefoot on the hot street, and it burns your toes. d. The heat transferred by hand or hair dryer
- 2. Ion channels that permit ions to pass between the interior of the cell and the extra-cellular medium are an important part of a living cell. There are multiple mechanisms that happen in an ion channel, but the simplest is that ions flow through the cell preferentially in one direction as a result of diffusion arising from a difference of ion concentrations on the inside and outside of the cell. L Cout As a first model of an ion channel, let's see how it would behave if the flux through the open channel were simply due to diffusion arising from a concentration difference. We'll model the open channel as a cylinder as shown in the figure at the left. Ас Fick's law for flow due to a concentration gradient is J = -D where D is the diffusion Ax constant and J has dimensions corresponding to number per unit area per unit time. 2.1 A typical ion channel radius is about 1 nm (nanometer), and the thickness of the cell membrane is about 7 nm. The concentration of Na+ ions inside a mammalian…Choose the most suitable definition for "heat". Select one: a. Flow of energy in structural units of chemical substances b. Energy associated with the random motion of atoms and molecules c. Energy stored in structural units of chemical substances d. Difference between the final and initial thermal energy of a systemYour home electricity bill for this 30-day month is $84. The rate is 15 cents per kilowatt-hour. How many Joules of energy did you consume during the month? a) 3.6 million b) 60,000 c) 1 d) 60 e) none of these
- Which of the following is a TRUE statement, according to the second law of thermodynamics? A. There is no heat flow between objects in contact at equilibrium temperature. B. Heat flows spontaneously if there is a temperature difference. C. Heat flows spontaneously from the cold side to the hot side. D. Heat flows spontaneously from the hot side to the cold side. E. A pump is needed for the heat to flow from hot side to the cold side.State the three laws of thermodynamics. a. First Law b. Second Law C. Third LawWhat is the total required heating energy in raising the temperature of a given amount of water when the energy supplied is 1000 kwh with heat losses of 25% ? A. 1000 B. 1500 C. 1333 O D. 1250
- When two objects are in thermal equilibrium with a third object, then: A.They are in contact with each other. B.They are in thermal equilibrium with each other. C.They are at odds with one another. D.They must be transferring heat between each other.20. Which of the following best describe radiation? A. Hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks B. When heat transfers from objects that are touching C. When heat is transferred from objects like rays of light or electromagnetically D. When heat transfers through the heater or AC in your housefind best option only type