Which of the following examples best represents heat? a. A sample of platinum is 76°C.   b. A piece of plastic contains 57 J of energy.   c. A piece of wood burns at 350°C.   d. A toy car generates 45 J of kinetic energy.

Q: An ice cube is placed in a sealed insulated container of hot water at 80°C. After five minutes, the…

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Q: 2. An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water…

A: Solution:-Given thatmass of aluminum calorimeter (mA)=100 gmass of water (mw)=250 gInitial…

Q: Consider the following physical cases. Choose the letter that correctly matches each roman numeral…

A: swbefore , giving the answer of this question , we should know the definition of WHAT IS CONVECTION…

Q: An insulated beaker with negligible mass contains quid water with a mass of 0.220 kg and a…

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Q: A person is holding a piece of ice and it begins to melt. What is happening in terms of thermal…

A: The temperature of the hand is higher than the temperature of the ice. From the law of calorimetry,…

Q: Specific Heat Table Substance cIJ kg K Substance cIJ kg K Aluminium 900 Ice 2100 Iron/steel 450 Wood…

A: Specific heat of a material defines the ability of the material to absorb or emit heat. It is…

Q: 2. Two 10-kg blocks of ice are used to make an ice sculpture. To do this, the artist uses a…

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Q: A bag containing 0C ice is much more effective in absorbing energy than one containing the same…

A: m = 0.8 kg

Q: You are given 1Kg of water at 30°C. In order to make it reach to 80°C, how much iron (at 120°C) must…

A: Given data: Mass of water mW=1 kg. Initial temperature of the water TW=30°C. Temperature of iron…

Q: 2. The brakes in a car increase in temperature by ΔT when bringing the car to rest from a speed v.…

A: In this problem, part b is not the part of the question but it is the suggestion. (a) Write the…

Q: Choose the correct answer: 1. A student blows up a balloon and places it in his home freezer. Since…

A: Since student want the balloon size to increase , the external pressure must decrease. Since…

Q: 2. A very small piece of ice, at a temperature of -1°C, is placed into an insulated cup that…

A: When the small piece of eyes is added to a large container of water the temperature of the ice will…

Q: Perform the following: 1. Give the Fahrenheit and Kelvin equivalent of the following Celsius…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: 00 You can touch the aluminum pan after it has been taken from the hot oven, but you'll burn your…

A: Aluminium has a low heat capacity so transferring a small amount of energy lowers the temperature of…

Q: You are trying to keep your house cool in the summer. Explain the following, using the ideas of…

A: Heat is a form of energy possessed by an object by its virtue of temperature. The temperature in…

Q: If you add 10 Cal to a cup of water and a piece of iron, both initially at the same temperature,…

A: Given: If you add 10 Cal to a cup of water and a piece of iron, both initially at the same…

Q: 1. The difference between molar heat capacities Cp and Cv of an ideal gas is equal to? 2. A…

A: (1) Cp is the molar heat constant at constant pressure.Cv is the molar heat capacity at constant…

Q: 1.  How long (in seconds) will it take to heat 40 kg of water from 40°C to 80°C with a 20-kW…

A: Since there are multiple questions posted, we will answer the first question. The heat energy needed…

Q: A block of metal of mass 0.320 kg is heated to 158.0°C and dropped in a copper calorimeter of mass…

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Q: An electric heater can add energy to a pot of water (c = 4186 J/kg°C) at a rate of 5000 J/s. How…

A: The formula to calculate the amount of energy required to raise the temperature of a substance is: Q…

Q: The initial temperature of an object is 30°C. If the internal energy of the object doubles, what is…

A: Initial Temperature of the object is (Ti)=300 C Final Internal Energy = 2×Initial Internal energy

Q: 4.) A material of mass m is heated using 5.00 calories of heat and its temperature rises by one…

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Q: A box with a total surface area of 1.20 m- and a wall thickness of 4.00 cm is made of an insulating…

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Q: A cylinder with a piston has some ideal gas inside. The piston is pushed inward to compress the gas…

A: Its a concept of adibatic process.

Q: 8. You pour equal masses of liquid A and liquid B into a coffee - cup calorimeter. Liquid A starts…

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Q: An ideal gas in a closed container of constant volume is warmed until its pressure doubles. The gas…

A: SOlution: given that P1 = P P2 = 2P T1 = 100 C

Q: 12. A block is pushed up a rough ramp, at constant speed, by a force that is parallel to the ramp…

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Q: 1. The heat conducted through a bar depends on which of the following? A. The coefficient of linear…

A: The heat conducted through a depends on which of the given options.

Q: 4.A boiler uses coal for fueling a power plant. The heating value of coal is 74500 kJ per kg of fuel…

A: Solution: As per the given data,   Heating Value of Coal = 74500 KJ/Kg  Excess air = 90%

Q: A cup of hot water has a temperature of 80°C and is placed in a room that has a temperature of 25°C.…

A: Given, T0= 25 degreeC T=88 degree C After 15 min, T= 66 degree C From Newton's Law of…

Q: As I use sandpaper on some rusty metal, the sandpaper gets hot because: a. heat is flowing from the…

A: Given a sandpaper and rusty metal.We find out the reason of sandpaper gets hot.

Q: Object A specific heat is 2.11J and the object B specific heat is 5.60J Which object will heat up…

A: Specific Heat is the amount of heat per unit mass required to raise the temperature by one degree…

Q: When an ideal gas confined to a rigid glass container is heated, its pressure and temperature both…

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Q: What is the change in area (in cm?) of a 60.0 cm by 150 cm automobile windshield when the…

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Q: Determine the length of time needed to transfer 0.8x106 J of energy through a 6.0 m² pane of glass…

A: Energy transfer, Q = 0.8×106 J Area, A = 6 m² Temperature difference, ∆T = 30° - 15° = 15°C Thermal…

Q: It is said that independent temperatures are held at 273 K in a volume of 11.35 dm3, its capacity of…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: Calculate the molar heat capacities of the following gases: a. Helium ( molar mass= 4.00 g/mole) b.…

A: Given: Molar mass of Helium=4.00 g/mole Molar mass of Hydrogen=1.00 g/mole Molar mass of Carbon…

Calorimetry

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