Which would lose energy by radiation at the fastest rate? Group of answer choices Molten lead at 700 deg C Aluminum panel at 300 deg C Water at 98 deg C Clay brick at 150 deg C Mass of air at 1100 deg C

Q: A change of temperature of 15•C is equivalent to a change of temperature of 15 K Select one: OTrue…

A: 1 °C   = 273 K  15 °C = 273 + 15 = 288 K  So the change of 15 degrees on celcius scale is same as…

Q: An oil tanker traveled from a location A (temperature 100.13°F) to location B (temperature 300 K).…

A: Initial temperature of location tanker, Ti = 100.13 o Fahrenheit  Final temperature of location of…

Q: calculate the energy needed to rise the temperature of 10 kg Iron from 25 C to 80 C specific heat…

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Q: To ignite wood, a temperature of at least 180 degrees Celsius is needed. Wood has a specific heat of…

A:

Q: thermal energy needed to boil a liquid is the heat of ______   A. condensation  B. fusion C.…

A: The energy needed to convert the phase of a liquid into vapour is termed as thermal energy.

Q: to heat the lead if it has a specific heat capacity of .129 J/ g°C. Answer: 9-10. A 1000 g cube of…

A: Given: The mass of cube lead is m=1000 g. The initial temperature of cube lead is T1=25°C. The final…

Q: Thermal equilibrium is there if a. None of these b. Pressure remains constant O c. Temperature…

A: when two systems which are in physical contact with other but there is no net flow of thermal energy…

Q: ulate the energy released by 5 grams of 100⁰C boiling water that cools to form ice, and then…

A: Q = mc △θ            c=sp heat capacity of water  1 cal/g °c     water change 100 to 0 and 0 water…

Q: Calculate the energy released when 20.0g of water forms an ice cube in a freezer at 0.0°C. Latent…

A: Given data:  Mass (m) = 20.0 g = 20.0×10-3 kg Latent heat of fusion (Lf) = 3.33×105 J/kg Required:…

Q: Calculate the energy released when 14 g of liquid water lowers from 14 degrees Celsius to 0.0…

A: mass of water , m=14 grow=0.014 kgit is cooled from 14°C to 0°C & then freeze at 0°CSpecific…

Q: How much energy is required to heat 31.3 kg of steel (c=0.490 kJ/(kg°C)) from 45.6°C to 1230°C for…

A: Given:  Mass, m=31.3 kg  Ti = 45.6°C  Tf=1230°C∆T=1184.4°Cspecific heat capacity of liquid…

Q: Complete the following statement: A temperature decrease of 30 C° is equal to a temperature decrease…

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Q: A body cools from 80 °C to 50 °C in 5 minutes. Calculate the time it takes to cool from 60 °C to 30…

A: Newton’s law of cooling gives,

Q: When you go out to your car one cold winter moning you discover a 0.70-cm thick layer of ice on the…

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Q: A rapidly spinning paddle wheel raises the temperature of 250 mL of water from 19.8°C to 28.9°C.…

A: We have to use some basic formula

Q: 65. Newton's Law of Cooling When an object is removed from a furnace and placed in an environment…

A: In Newton’s law of cooling, the equation for cooling is given by, Here, T denotes the core…

Q: An air conditioner expels 4.23  105 J of heat to the outside. If the indoor temperature is 16.2°C…

A: Given Data: The amount of heat expelled to the outside is: Q1=4.23×105 J The magnitude of the indoor…

Q: Suppose a 2Kg of glycerine have a temperature of 30°C.Heat is supplied to a steady rate of 100 W.…

A: Mass, m = 2 kg Initial temperature, Ti = 30°C Final temperature, Tf  = 75°C Power, P = 100 W Time, t…

Q: If 500J of thermal energy is dissipated in 10s through a steel bar raising its temperature by 8K and…

A: Write the expression for thermal conductivity of the steel bar.

Q: Heat changes ice to water. How do we know we can get the ice back again? The ice can melt slowly.…

A: For a process to be reversible, process has to be quasi-static (extremely slow).

Q: 41.) The total energy of the particles of a substance as well as their potential energy is the…

A: 41. The energy contained in the motion and vibration of molecules of an object or the energy arises…

Q: Calculate the amount of heat energy required to raise the temperature of 100 g of copper from 20°C…

A: GIVEN: Temperature T1 =200C or 293K                         T2=700C Or 343K Specific heat of…

Q: A 5-L amount of water at a temperature of 25°C will be raised to what temperature if 3000 calories…

A: Given value--- Volume = 5 L. initial temperature = 25 degree C.  heat = 3000 cal. We have to…

Q: QUESTION 18 A ball of lead of mass 1kg drops from a height of 46 m, hits the floor and remains there…

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Q: An aluminum Bar of length 0.5 is heated from room temperature (22 C) to 115 C. How much longer is…

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Q: A temperature decrease of 30C° is equal to a temperature decrease of: * 30Fº 30 K 303 K 17Fº

A: Given data:  Temperature decrease in Celsius scale is equals to 30°C

Q: A temperature increase of 20 C° is the same as a temperature increase of a) 32 F°. b) 293 K. c) 273…

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Q: A chunk of metal with a mass of 250.5 g at 76.8°C is placed in 0.1 kg of water initially at a…

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Q: A 37.76g piece of metal absorbs 1,374 joules of heat energy, and its temperature changed from 13C to…

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Q: The enthalpy of evaporation of water is 40.67 kJ>mol. Sunlight striking Earth’s surface supplies…

A: Enthalpy of evaporation, ∆H = 40.67 × 103 J/molHeat from Sun, Qsun = 168 W/m2 = 168 J/s.m2Area, A =…

Q: Solar adsorption system follows the principle of O a. Van der walls forces O b. Boys law of gas O c.…

A: Adsorption is of two types : Physisorption Chemisorption Density functional theory explains the…

Q: Water is boiling in an aluminum pan placed on an electrical element on a stovetop. The sauce pan has…

A: The rate of heat transfer is given by  where, A is the area, K is the coefficient of thermal…

Q: Heat flows from one body to another when they have O a. different heat contents. O b. different…

A:

Q: A change of temperature of 15•C is equivalent to a change of temperature of 15 K Select one: True…

A: 1 °C   = 273 K  15 °C = 273 + 15 K = 288 K. So the change of 15 degrees in celcius scale is same as…

Q: Which is the coolest temperature in the following values? O 100 °C O 200 °F O 273 K O 400 K O No…

A: Given: The temperatures are:- 1→100°C2→200°F3→273 K4→400 K

Q: Selena has a fire in her fireplace to warm her 20°C apartment. She realizes that she has…

A: increase in length of iron poker due to heating will be given by: dL = L0*alpha*dT L0 = original…

Q: Calculate the total amount of energy (in kJ) required to heat 0.2 kg of Mercury from its melting…

A: The amount of heat required is, Q=mCT2-T1 the specific heat capacity is 140 J/kgK or J/kgoC.

Q: A 3.87kg lead billet is to be melted for a casting operation. Lead has a melting point of 328°C, a…

A: Given data:  Mass of the lead billet (m) = 3.87 kg Melting point of lead = 328°C The specific heat…

Q: It takes 93.4 J of energy to heat a certain mass of a sample of lead from 22.3°C to 40.4°C. Find the…

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Q: How many kilograms of -25°C ice per day will melt and evaporate to steam after adding a total of…

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Q: DATA: LATENT HEAT OF FUSION MASS of EMPTY CALORIMTER (g) 48.1g MASS of CALORIMETER with WATER (g)…

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Q: The temperature of 0.38 kg of water increases by 2.3 °C after transferring some heat. Calculate the…

A: Given data:  Mass (m) = 0.38 kg Increase in temperature (ΔT) = 2.3 °C Specific heat of water (c) =…

Q: Choose the BEST answer to the following: An object that absorbs energy well also (a) conducts well.…

A: Step 1A substance that absorbs energy well becomes hot by the absorption of energy.

Q: Name the instrument used to measure temperature using the radiation emitted from the body.

A: The instrument used to measure temperature using the radiation emitted from the body is pyrometer.

Q: Heating a sample of matter from 20°C to 40°C at constantpressure causes its volume to increase from…

A: coefficient of volume expansion of ideal gas value range α=1VΔVΔT

Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.