If two objects are in thermal equilibrium, that means they have the same

Q: If someone double the thickness of a wall built from a homogenous material, the rate of energy…

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Q: When a solid body is heated, what happens to its mass and density?

A: Density = Mass/Volume   When a substance is heated its volume increases and so the density…

Q: What is the role of Phase transitions in heat flow?

A: In the heat flow, element takes heat and increase its temperature. Or element release the heat and…

Q: When a body gains heat, there is always a rise in its temperature.  True or False

A: According to first law of thermodynamics , ∆Q = ∆U + W  Here ∆Q = heat change  ∆U = internal energy…

Q: Why is a calorimeter box made up of Copper?

A: A calorimeter box is made up of Copper because i) Cu has low SHC & thus it reaches the…

Q: A bottle of helium gas and a bottle of argon gas contain equal numbers of atoms at the same…

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Q: Both beakers A and B contain a mixture of ice and water at thermal equilibrium. Which of the breaker…

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Q: Which two factors affect the amount of thermal energy an object has?

A: Two factors that affect the amount of thermal of an object are  1) The average kinetic energy of the…

Q: How can you cause heat to flow from a body at lower temperature to one at higher temperature?

A: Heat can flow from a body at high temperature to a body at low temperature by any one or combination…

Q: When is a system considered to be in thermal equilibrium? When does heat transfer from one body to…

A: Required : When is a system considered to be in thermal equilibrium.

Q: If you leave a metal spoon propped up in a pot Is this Conduction, convection, or radiation

A: Conduction is transfer of heat energy through one medium to another through contact.

Q: When a 1-kg metal pan containing 1 kg of cold water is removed from the refrigerator and set on a…

A: Basic Details         The amount of heat absorbed depends on the mass of the element, the specific…

Q: Why is it incorrect to say that, when a hot object warms a cold object , temperature flows between…

A: The first law of thermodynamics states that when the two bodies those have the different…

Q: What is wrong with the following statement: “Given any two bodies, the one with the higher…

A: Heat is amount of energy that flows from a higher temperature body to the low temperature body. It…

Q: If the specific heat capacity of water were less, would a nice hot bath be a longer or shorter…

A: The formula of the specific heat:

Q: How is the loss of heat due to radiation minimised in a calorimeter?

A: Heat loss due to radiation is minimized by polishing the box in order to smoothen it.

Q: You apply a flame to 2 L of water for a certain time and its temperature rises by 1°C. If you apply…

A: We know,  Q = m*c*Δt Mass can further be represented in terms of volume as - Density = mass/volume.…

Q: Heat from an oven causes the whole kitchen to get warmer.

A: Radiant energy refers to energy that travels by electromagnetic radiation such as heat or x-rays.…

Q: A block of wood and steel is placed in a thermally stable room, which one has a lower temperature?,…

A: Wooden and steel block both are placed in a thermal stable room.

Q: What does it mean to say that two systems are in thermal equilibrium?

A: What does it mean to say that two systems are in thermal equilibrium?

Q: What makes heat transfer by radiation different from conduction and convection?

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Q: Why is thermal equilibrium always established when two objects transfer heat?

A: Heat is a form of energy that transfers from higher temperature to the lower temperature. At higher…

Q: An old remedy for a pair of nested drinking glasses that stick together is to run water at different…

A: When two thinking glasses are nested together, in order to separate them, cold water flows into the…

Q: An astronaut has two objects that are identical in all respects, except that one is painted black…

A: Which of the two objects painted black and silver cools down at a faster rate.

Q: Since all objects emit energy to their surroundings, why don’t the temperatures of all objects…

A: The method of heat transfer which doesn't require any medium is radiation. In radiation, heat is…

Q: What is the necessary condition for thermal equilibrium?

A: The transfer of heat takes place from the higher temperature object to the lower temperature object.

Q: In Convective Heat Transfer the greater the motion of the the greater the heat transfer, in general,…

A: Convective heat transfer takes place in fluids due to density difference .

Q: What are applications of thermal expansions?

A: The tendency of matter to change its shape, area, and volume in response to a change in temperature…

Q: How could you decrease the thermal energy of a can of soup you just took out of your pantry?

A: The temperature of a system is the measure of its thermal energy. If the temperature of the system…

Q: What has the greatest increase in Temperature given these materials of the same mass receive the…

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Q: Why is being burned by steam more damaging than being burned by water at the same temperature (100…

A: when the state of any matter changes from one state to another state  its temperature when the state…

Q: Can two objects be in thermal equilibrium if they are not touching ?

A: Zeroth law of thermodynamics If two objects A and B are in thermal equilibrium with another object…

Q: Does it necessarily mean that, when an object feels colder than another, the object has a lower…

A: The temperature is the degree of hotness or the coldness of a body.

Q: What is the relationship between heat and temperature?

A: Heat and temperature are one of the two components in the thermodynamics. Heating a substance…

Q: Heat is transferred only when two objects are at different temperatures. O True O False

A: SOlution: is heat transfer between two bodies woth different temperature

Q: At what temperature will the air in the oven have a thermal energy of 5.0 x 10 J?

A: Thermal energy of the air inside oven (E)=50 J Boltzmann's constant (k)=1.38×10-23 J/K

Q: While running, you need to transfer 300 J/s of thermal energy from your body to the moisture on your…

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Q: A nail made of iron and a bowl of water have the same temperature because they are on the same table…

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Q: When a hot object and a cold one are placed in thermal contact, the temperature at equilibrium will…

A: Recall principle of calorimetry Heat lost by hotter body=heat gained by colder body

Q: Why must an object be weighed at room temperature?

A: To explain :  Why must an object be always weighed at room temperature