A certain integrated circuit operates at 700C and generates heat at the rate of 2.5 W. It is fixed to an aluminium rod 20 mm long and having a cross- sectional area of 50 mm2. The other end of the rod is attached to a finned heat sink. Determine the
Q: An aluminum washer has an outer radius ro=1.3cm and an inner radius of ri=0.43cm. The temperature of…
A: Given , initial temperature Ti=282k Final temperature Tf=630k mass of…
Q: A 0.281-kg coffee mug is made from a material that has a specific heat capacity of 943 J/kg Cº and…
A: we will be simply using the concept of calorimetry to solve this problem which is basically the…
Q: Don't use chat gpt
A:
Q: Question 1: Water enters a tube (shown below) at a flow rate of 6 lit/min and an inlet temperature…
A: Note: As per the guidelines, we can only answer three subparts of a question. Sorry for the…
Q: The concrete sections of a certain superhighway are designed to have a length of 24.0 m. The…
A: The length of the concrete superhighway is L = 24.0 m The initial temperature of the concrete is T1…
Q: The concrete sections of a certain superhighway are designed to have a length of 27.0 m. The…
A: The formula to find linear expansion due to rise in temperature is given by…
Q: The structure of a house is such that it loses heat at a rate of 4500 kJ/h per "C difference between…
A:
Q: A 0.253-kg coffee mug is made from a material that has a specific heat capacity of 944 J/kg C° and…
A: The total heat energy taken by the cup and water Q=mcupCcup∆T+mwaterCwater∆T=mcupCcup+mwaterCwater∆T…
Q: The filament in a light bulb has a diameter of 0.02 mm and an emissivity of 1.0. The temperature of…
A:
Q: A 0.298-kg coffee mug is made from a material that has a specific heat capacity of 921 J/kg C° and…
A: The knowns in this problem are: mass of the coffee mug (m1) = 0.298 kg, specific heat capacity of…
Q: The concrete sections of a certain superhighway are designed to have a length of 27.0 m. The…
A: Initial length ( L ) = 27 m Initial temperature ( T1 ) = 10° C Final temperature ( T2 ) = 43° C…
Q: Imagine that 491 people are present in a movie theater of volume 8.00x103 m³ that is sealed shut so…
A: V = 8*103 m3 Since there is no change in volume So ΔU = ΔQ Here also γ = 7/5 ( for diatomic gas)…
Q: A food department is kept at -12°C by a refrigerator in an environment at 30°C. The total heat gain…
A: By circulating the refrigerant under pressure in the system, the compressor concentrates the heat.…
Q: With the following experimental data, calculate the average ignition temperature and the theoretical…
A: Average of any quantity = Sum of the total observations number of observations The average…
Q: The concrete sections of a certain superhighway are designed to have a length of 24.0 m. The…
A:
Q: A family comes home from a long vacation with laundry to do and showers to take. The water heater…
A:
Q: A cylindrical resistor element on a circuit board dissipates 0.15 W of power in an environment at…
A:
Q: An electric stove burner has surface area 325 cm² and emissivity e = 1. The burner consumes 1500 W…
A: We are aware that an electric stove burner has a surface area of 325 cm2, an emissivity of 1,…
Q: A hollow sphere has an outside radius of 1m and is made of polystyrene foam (k=0.033 W/m K) with a…
A: Given,R=1mt=1.11cm=0.0111mk=0.033 W/m K
Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…
A: Given, Mass of ice, m=16.8 g Initial temperature,T1=-10.7 °C Final temperature,T2=29.4 °C Latent…
Q: A small metal cube with a thermal mass mc and an initial temperature 0, is dropped into a container…
A: At steady-state, the temperature at different parts of the solid remains constant and independent of…
Step by step
Solved in 3 steps with 11 images
- temperature is 330 K. Find the heat loss per unit area and the temperature of the junction of the fire brick and insulating brick? RO 5. In Sohar Petroleum Company, a steam pipeline, with 150 mm ID and 160 mm OD carries steam. The pipeline is surrounded with a layer of heat insulating material (K=0.08 W/m.k) of thickness 100 mm. The temperature drops from 392.8 K to 313 K across the insulating surface. Determine the rate of heat loss per 1 m length of pipe line. ID = 1Somm 160 mm OD,h-loo mm .K=0.08w/m.k %3D 「-392.8 ん/ 12 = 313k = 313 K 2.Refrigerant-134a enters the condenser of a refrigerator at 900 kPa and 60°C, and leaves as a saturated liquid at the same pressure. Determine the heat transfer from the refrigerant per unit mass.In an effort to stay awake for an all-night study session, a student makes a cup of coffee by first placing a 200 W electric immersion heater in 0.400 kg of water. How much heat must be added to the water to raise its temperature from 21.0°C to 77.0°C? Express your answer in joules. IVE ΑΣΦ Q = Submit Part B t = Request Answer Submit How much time is required? Assume that all of the heater's power goes into heating the water. Express your answer in seconds. OF 15. ΑΣΦ ? Request Answer J ? S Re
- A small electric immersion heater is used to heat 79 g of water for a cup of instant coffee. The heater is labeled “72 watts" (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 20°C to 100°C, ignoring any heat losses. (The specific heat of water is 4186 J/kg-K.) Number UnitsA 300 g aluminum pot containing 0.50 L of water is placed on the 1 kg iron hot plate on an electric stove. The heating element of the hot plate is rated at 1.5 kW. If the hot plate, the pot, and the water are all at 20°C when the heating element is switched on, how long will it take until the water begins to boil? Neglect heat losses to the surroundings.A 0.288-kg coffee mug is made from a material that has a specific heat capacity of 930 J/kg C° and contains 0.319 kg of water. The cup and water are at 25.6 °C. To make a cup of coffee, a small electric heater is immersed in the water and brings it to a boil in two minutes. Assume that the cup and water always have the same temperature and determine the minimum power rating of this heater. Number i Units