If 500J of thermal energy is dissipated in 10s through a steel bar raising its temperature by 8K and the bar has a radius of 8 cm and thickness of 10cm what is the thermal conductivity of the steel bar

Q: A 12-kg iron ball is dropped onto a pavement from a height of 130 m . Suppose that half of the heat…

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Q: A styrofoam cooler has a thickness of 1.10 cm and a total surface area of 2.20 m². If the outside…

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Q: A Metal container with a mass of 2 kg and containing 2.30 kg of water is put it on a fire. Assume…

A: The heat required to raise the temperature of the water and Aluminium vessel is Q=QAl+Qw The…

Q: The ends of a 20.2cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Part A. Area of cross-section = πR2=π1.5×10-222=1.767×10-4 m2   Part B. Heat Conduction = 47×103 J1…

Q: A silver bar has a mass of 0.525 kg. When 1230 joules of thermal energy is added to the bar, its…

A: The specific heat capacity of silver is  c = 234.286 J/kg* 0C

Q: When water is heated from 10°C to 15°C What is the change in temperature? A) 10 °C B) 5 °C C) - 5 °C…

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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: The ends of a 19.2cm long, 1.7cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Hai, since there are multiple questions posted, we will answer the first question. (a) The area of…

Q: The ends of a 21.2cm long, 1.7cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: givenlength of rod,L=21.2 cmdiameter of rod,d=1.7 cmlower temperatureTl=0°CHigher temp.TH=100 CQ=40…

Q: Nome is a coastal community in Western Alaska. The average daily low temperature in January is…

A: Given Lowest temperature in Nome is -11oC Lowest temperature in Fairbanks is -24oC

Q: How much heat must a gram of water at 15 celcius lose to turn into ice at -10 celciu

A: here heat looses heat and comes at 0°C .   we use Q= mc△θ and after this state of water will be…

Q: Water has a Latent Heat of Vaporization of 540 calories per gram. You have room temperature water…

A: Given data:  Latent heat of vaporization (Lv) = 540 cal/g Initial temperature (T0) = 20°C Final…

Q: A brass calorimeter cup with a specific heat of 380 J/(kg · °C) contains vinegar with a specific…

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Q: An automobile cooling system holds 16 L of water. The specific heat of water is 4186 J/kg⋅C. How…

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Q: A mass of 50 g of a certain metal at 150° C is immersed in 100 g of water at 11° C. The final…

A: Heat energy lost= heat energy gained Here, heat is lost by the metal and gained by water. Given:…

Q: what is the difference between  heat transfer by conduction, convection and radiation

A: We know that, The heat transfer is slow in conduction. The heat transfer is faster in convection.…

Q: The Eiffel Tower is built of wrought iron approximately 300 m tall. Assume the coefficient of…

A: The given problem is based on thermal expansion of solids, to solve the given problem we will write…

Q: When 200gm of hot coffee is poured into a cup, how much heat is lost from the coffee to the 200gm…

A: Given that,  The mass of the liquid, m is 200 gm. The initial temperature of the liquid, Ti is 70…

Q: Some stove tops are smooth ceramic for easy cleaning. If the ceramic is 0.600 cm thick and heat…

A: Since the value of the surface area is not given, we are taking it as A and also the rate of heat…

Q: In lab you submerge 200 g of 50 degree Celcius iron nails in 500 g of 22 degree Celcius water (the…

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Q: A food product with 82% moisture content is being frozen. Estimate the specific heat of the product…

A: Solving the problem by using RAC concept

Q: Material Specific Heat (J/kg °C) water (pure) 4,184 aluminum 900 steel 470 silver 235 oil 1,900…

A: Given :- mass of aluminum piece (M) = 0.8 Kg increase in temperature (T) = 15oC  specific heat of…

Q: A 40-gram water with temperature of 60C is placed into a 60-gram aluminum cup of temperature 25C.…

A: Given: The mass (m1) of the water is 40 g. The mass (m2) of the aluminium cup is 60 g. The…

Q: How much heat was lost by the horseshoe in vaporizing 0.0100 kg of water

A: Given data: The initial temperature of water is: Ti=22∘C The mass of the water is: m=0.0100 kg The…

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: The ends of a 18.2cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Given  Diameter d = 1.5 cm  Radius r = d/2 = 0.75 cm = 0.75×10-2 m Length l = 18.2 cm = 18.2×10-2 m…

Q: An unknown material bar having length of 2.7m has 1m² cross sectional area. One end is in contact…

A: Given length of bar = 2.7m Area of cross section, A = 1m2 Temperature difference ,ΔT = 373K-273K…

Q: Is a number which indicates the change in length per unit length per degree of temperature change…

A: Number which indicates the change in length per unit length per degree of temperature change is

Q: Estimate the rate of change of temperature of the ocean in degrees/century associated with 4 W/m2 of…

A: This is a thermoynamics quetion. In order to raise the temperature of water heat is supplied which…

Q: The ends of a 19.8cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Given data: Length, L=19.8 cm=0.198 m Diameter, d=1.5 cm=0.015 m Heat, Q=43×103J/h Temperature,…

Q: 5-kg of iron at 200°C is added to a 3-kg of water at 20°C. What is the resulting equilibrium…

A: Given information:

Q: A shipping container with a total surface area of 4.00 m2 and a wall thickness of 3.00 cm is made of…

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Q: The ends of a 18.2cm long, 1.7cm diameter rod are maintained at 0°C and 100°C by immersion in an…

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Q: The ends of a 21.6cm long, 2.3cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: The rate of heat conduction through a metal nod is,                  directly proportional to area…

Q: We have 1lb of water at 25C in a paper cup. When you pour 30 g of boiling water into the cup, what…

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Q: A simple solar energy heater is a glass-topped box containing rocks. Sunlight heats the rocks during…

A: Given:-  A simple solar energy heater is a glass-topped box containing rocks.  Sunlight heats the…

Q: if its required 240 calories of energy to increase 50 gram objects temperature from 15 c to 150 c.…

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Q: The thermal conductivity of ice is 5.2 x 10^-4 kcal/m-s degrees Celsius. At what rate is heat lost…

A: Given, the thermal conductivity of ice is k = 5.2 x 10-4 kcal/m-s degrees Celsius. To find the rate…

Q: Specific heat capacity is related to the amount of energy O a O b transferred by one molecule a…

A: Option c is the right answer

Q: Condensation of water in the air is an important process in determining the climate of an area. When…

A: Heat of condensation is just opposite to Heat of vaporization It is the amount of heat released when…

Q: If you have an 8-oz cup of coffee that is 27 C and a 64-oz container of coffee that is 27 C; which…

A: The heat is nothing but the measure of internal energy stored in the object. Here in this case we…

Q: The cover of a solar coker is made of glass because:    A) it absorbs sun's rays B) it reflects…

A: The glass always produces the green house effect. It does not allow the smaller wavelength to escape…

Q: The temperature of 200 g of water increases from 20°C to 50°C in 10 minutes. Calculate: i.    the…

A: Given, amount of the water, m = 200 g = 0.2 kg temperature, T1 = 20 °CT2 = 50 °C time, t = 10…

Q: A mass of 50 g of a certain metal at 150° C is immersed in 100 g of water at 11° C. The final…

A: mass of  metal = ms= 50 g temperature of metal = ts= 150 c mass of water = mw= 100 g temperature of…

Q: The ends of a 19.6cm long, 1.9cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Recall A=πr2 And  ∆Q/∆t=heat conduction=KA(T1-T2)/L

Q: How many calories of heat are needed to raise the temperature of 75g of water from 20 °C to 80 ° C.…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.