Adding the same amount of heat to two different objects does not necessarily produce the same increase in temperature. Why not?

Q: why heat is called energy in transit?

A: Heat is a form of energy. It is defined as the process of transfer of energy from a higher…

Q: Which of the following is NOT unit of heat? O calorie O Btu sanor O none of these Joules

A: The SI unit of energy is Joule.  The other units are calorie and Btu.  1 calorie = 4.18 J  1 Btu =…

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 can you add heat to something without raising its temperature?

A: When water is heated, the temperature rises till 100oC and then it boils. After this point, the…

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: Why does the high specific heat of water have to do with convection currents in the air at the…

A: Water has a high specific heat capacity (of 4200 J/Kg°C) on the seashore and the land has a much…

Q: In terms of thermal expansion, why is it important that a key and its lock be made of the same or…

A: Given: Key and lock

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: What does that specific heat of a substance relate to its ability to change temperature?

A: As we know, the relationship between specific heat and temperature of a substance is given by the…

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: When can you add heat to object without raising its temperature?

A: When two phases co-exists in a system, any heat added or removed from the system will result in…

Q: The type of heat transfer that occurs in liquids and gases, such as warm air rising and cold air…

A: Convection:  It is a mode of heat transfer which occurs by the motion of a fluid due to density…

Q: Is there more than one method of heat transfer? If so, then how are they similar and different than…

A: Heat is the transfer of energy from one medium to another. The heat can be transferred by:…

Q: An electric fan not only doesn’t decrease the temperature of air, but it actually increases air…

A: Given:  an electric fan

Q: Why does a two-story house that is roughly a cube suffer less heat loss than a rambling one-story…

A: For a given volume, a one-story house has less surface area than a two-story house. As we know rate…

Q: What examples of heat transfer by conduction, radiation, and convection do you encounter when using…

A: Heat transmission is a straightforward physical process. During the heat transmission process,…

Q: When heat flows from a warm object in contact with a cool object., do both objects undergo the same…

A: No

Q: How is heat transfer related to temperature?

A: Heat and temperature are related to each other but these are different quantities. Temperature is a…

Q: When I sit by a campfire, how does its hot air heat me?

A: When you sit by a campfire, most of the heat you are receiving from the fires does not come from hot…

Q: Why two thin blankets are warmer than a single blanket of double the thickness?

A: Step 1If there are more layers, air can’t pass deeper.

Q: There is more than a single reason why pouring a cup of hot coffee into a saucer results in faster…

A: Cup is generally manufactured with insulating material. So, coffee remain hot in cup for long time…

Q: In terms of thermal expansion, why is it important that a key and its lock be made of same or…

A:

Q: Why does a piece of watermelon stay cool for a longer time than sandwiches do when both are removed…

A: Given:  watermelon and sandwiches

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: The heat never flows spontaneously from a colder object to a hotter object. why?

A: Heat flows

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: A ½ kg ball dropped from a height of 2 m rebounds to only 1.2 m after hitting the ground. The amount…

A: Find the amount of energy converted to heat. ∆E=mg∆h=mgh2-h1

Q: Make a contrast between a boot that is chilly and a boot that is warm.

A: We have to find the difference between a chill boot and a warm boot.

Q: In terms of heat flow, explain why silverware feels cold to touch?

A: Answer:-  Metal(silverware) feels cold because it conducts heat extremely well.  Since room…

Q: Can there be any heat transfer between two bodies that are at the same temperature but at different…

A: Heat transfer is a branch of thermal physics that concern with the transfer of heat from one body to…

Q: Does a good insulator prevent heat from escaping , or does it simply slow its passage?

A:

Q: If you have steel and wood at 0 °C, which feels colder? If you have steel and wood at 100 °C, which…

A: Material having high thermal conductivity transfers heat more easily. Case 1. Metals usually have…

Q: How does a fan help us feel cooler in the summer?

A: Given fan help us feel cooler in the summer we have to find the cause of the above mentioned…

Q: Distinguish between a calorie and a joule?

A: Both calorie and joule are the units of energy. The main difference in both the units is that a…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.