Using own words, discuss latent heat.

Q: If you want to preserve the hotness of the coffee, while waiting for your date, should you add the…

A: If you want to preserve the hotness of the coffee, you should add the cream now or later by the…

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

A: Thermal energy is total energy caused by motion

Q: Does a substance absorb or liberate any heat energy during the change of phase?

A: Phase transition is when a material transitions to a different state from a solid, liquid, or gas…

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: Show that 600 J is turned into heat.

A: Heat is the form of energy which gives us the sensation of warmth or coldness.

Q: Does the temperature of a body depend on its size?

A: Answer : No  Temperature is an intensive property it does not depend on the size. Example : If you…

Q: An introduction to thermal physics

A: Thermal Physics : it is the combined study of thermodynamics, statical mechanics, and kinetic theory…

Q: How does the kind of material of the calorimeter affect the cooling of the liquid samples?

A: The change in temperature of the liquid is dependent on the material of the calorimeter. A liquid…

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: Mention the advantages of gas thermometer over liquid thermometer?

A: Advantages of gas thermometer are:

Q: Why does an iron ball seem to have a lower temperature than a wooden ball despite having the same…

A: iron ball seem to have a lower temperature than a wooden ball despite having the same temperature

Q: Does a substance that heats up quickly have a high or a low specific heat capacity?

A: The amount of heat required to raise the temperature of unit mass of substances through one degree…

Q: Calculate the amount of heat necessary to change 2.5 kg of ice at 0°C into steam?

A:

Q: If air is a bad conductor of heat, why do we not feel warm without clothes?

A: Air is a bad conductor of heat because molecules are not close together as in solids. Thus, heat…

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?

A:

Q: Air is a bad conductor of heat , but still we donot feel warm without clothes, Why?

A:

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: Is fur a source of heat to our body?

A: Step 1Animals maintain their body temperature by thermo regulation.

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: what happens as the temperature of an object increases?

A: It is very general scenario with various effects on the body and exhibited by the body. In layman…

Q: Show that heat always flows from high temperature to low temperature.

A: Heat always flows from high temperature to low temperature because of Second law of thermodynamics

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: 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: 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: What is the difference of sensible heat to latent heat?

A: Sensible heat is associate with change in temperature of an object or substance without change in…

Q: Why are heat and temperature not the same thing?

A: To explain : The difference between the heat and temperture

Q: Write the term which matches the following defintion. Heating via direct contact

A:

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: Does a hot object contain internal energy or does it contain heat?

A: Heat is the energy transferred from hot object to the cold object.