Are metals good thermal conduction

Q: Calculate the specific heat capacity of a 7.5 kg sample of a metal, if it absorbs 849 J of heat and…

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Q: Calculate the amount of heat released when 15.5 g of liquid water at 22.5 °C cools to ice at -10.0…

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Q: What is meant by the terms of thermal expansion and thermal conductivity?

A: Thermal conductivity:

Q: Why is evaporation a cooling process?

A: Evaporation is the process in which water changes its phase from liquid to gaseous.

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: The rate of heat flow in a solid plate depends on geometry of plate, temperature distribution and…

A: Rate of heat flow in a solid plate is depends upon the thermal conductivity, area and temperature…

Q: When 150 g of ice at 0°C is mixed with 300 g of water at 50°C the resulting temperature is 6.7°c.…

A: According to the conservation of energy, Qlost,w=Qgain,i+Qgain,w from imwcwTf-Ti=miLf+micwTf-Ti

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: The unit of thermal conductivity is:

A: When the heat is transferred to one end to the other end of the material, the heat flows per second…

Q: Why mercury is used as a thermometric liquid?

A: Thermometric liquids are the liquid which is used in temperature measuring devices.

Q: Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the…

A: Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the…

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: Calculate the energy absorbed when 89g of water is boiled at 100.0°C. Latent heat of vaporization…

A: The boiling of the water is the process by which water turns into vapor when it is heated to its…

Q: What is meant by temperature

A: Temperature is the quantity that is also defined as the degree of hotness or coldness of the body.…

Q: Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the…

A: A bimetallic strip consists of two strips of different metals: copper on top) and iron (on the…

Q: Why fragant perfum will be holding smell longer in colder temperaturate more than hot temperature?

A: Velocity of air depends on temperature,as the temperature increases velocity of air increases. At…

Q: An iron plate 2cm thick has a cross-sectional area of 4000cm2. One face is 160°C and the other is at…

A: Thickness of the plate Area of cross-section First temperature Second temperature Heat rate    The…

Q: Discuss the purpose of a layer of copper or aluminum on the bottoms of stainless steel cookware.

A: The cooking utensils are fabricated with a layer of copper or aluminium at the bottom so that the…

Q: Specific Heats of Common Material MATERIAL SPECIFIC HEAT (Joules/gram• "C) Liquid water Solid water…

A: Given:The amount of heat in one hour is 32,000,000 J. The initial temperature of the water is  12°C.…

Q: Latent heat of a substance depends on the .............. of the substance: O a. mass O b. material…

A: Latent heat is the quantity of heat released or absorbed by a unit mass of a substance resulting in…

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: Calculate the amount of heat added to 1 gram gold to change phase from plid to liquid. The heat of…

A: Given Mass m = 1 g = 10-3 kg  Latent heat of fusion Lf = 64.5 × 103 J/kg

Q: Boiling is a form of evaporation - O True O False

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Q: Which metal is the best conductor of heat? A) Silver B) Gold C) Copper D) All of the above

A: All conductors are best conductors of heat and electricity. Hence all of the above mentioned metals…

Q: Why does increasing the temperature of a solid make it melt?

A: The process by which solid become liquid is known as melting. Phase changes occur when matter…

Q: Why doesn't energy added to boiling water increase the temperature of the water?

A: When the water is boiling, it is on the course of undergoing a phase transition from its liquid…

Q: At what common temperature will a block of wood and a block of metal feel neither hot nor cold to…

A: The heat tranter will occur only when the temperature of the object and the surroundings are…

Q: Calculate the amount of heat (in kJ) needed to raise the temperature of 50.0g of water 20.0°C to…

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Q: The length of a copper bar increased by 0.0004 m when it was heated from its initial temperature of…

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Q: A nickel plate 0.8 cm thick has a temperature difference of 64°C between its faces. It transmits…

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Q: If 200 grams of copper at 250oC was dropped into 300 g of water at 10oC contained in a 200 grams…

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Q: What type of material are thermal insulator

A: Before discussing what type of material are thermal insulator. First let us discuss what is thermal…

Q: Thermal conductivity of air is less than that of felt, but felt is a better heat insulator in…

A: the thermal conductivity of air is less than the felt where as the open air conduct heat  through…

Q: The process of transfer of heat in solids is.

A: Here, we will understand the meaning of all given options to find the answer -  (a). Insulation -…

Q: ich heat is required to bring 1 liter (1 kg) of water to a boil from 20 degrees Celsius? How ich…

A: Given  Volume = 1L =10-3 m3  density of water = 103 kg/m3  Mass m = volume × density = 10-3 ×103 =1…

Q: If 100 g of a stream at 100∘C was mixed with 10 kg of ice at -100∘C, find the final temperature of…

A: Given the heat losses to the surrounding is zero. Therefore,

Q: Calculate the specific heat of a metal from the follo contains 17 kg of water. A 2.0 kg piece of the…

A: GivenMass oc container, mc=3.4 kg Mass of water, mw=17 kgMass of metal piece, mp=2 kgTemperature of…

Q: thermometer does not use mercury.

A: In this question we have to answer which thermometers do not use mercury.Please give positive…

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: Which material will make the best calorimeter? Foam cup O Glass cup O Aluminum can Plastic cup

A: Foam cup is a bad conductor of heat.

Q: A 900-g brass at 100 oC is dropped into 2.27-kg water at 1.60oC. When mixed, the equilibrium…

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Q: either specific heat or latent heat specific heat atent heat heat capacity

A: GIVEN:-  The amount of heat required to change the phase of 1kg of substance is Find:- correct…

Q: What is unit of thermal conductivity?

A: The unit of thermal conductivity is defined as :

Q: When does Thermal equilibrium occur?

A: A thermal equilibrium between two systems occurs when there is no net exchange of heat between them.

Q: Steam at 100°C is passed into 20 g of water at 10°C. when water acquires a temperature of 80°C, the…

A: