If two objects at different temperatures are brought in contact with each other,
energy is transferred from the hotter object
(that is, the object with the greater temperature) to the colder (lower temperature) object, until both objects are at the same temperature.
When two bodies at different temperatures are placed in thermal contact with each other heat flows from the body at higher temperature to the body at lower temperature until both acquire the same temperature assuming that there is no loss of heat to the surroundings What do you think will?
Complete answer:
Also, when we take two bodies at different temperatures and place them in thermal contact with each other, then heat flows from the body at a higher temperature until they both acquire the same temperature i.e.,
reaches equilibrium
.
What happens when two different temperatures are mixed together?
Heat Transfer: The movement of heat from a warmer object to a colder one – when two substances at different temperatures are mixed together,
heat flows from the warmer body to the cooler body until they reach the same temperature
(Zeroth Law of Thermodynamics – Thermal Equilibrium).
When two bodies at different temperatures are placed in contact the temperature of the temperature between the two temperatures is the statement correct or incorrect?
When two bodies at different temperatures are placed in thermal contact with each other heat flows from the body at higher temperature to the body at lower temperature until both of them acquire the
same temperature
. Assuming that there is no loss of heat to the surroundings the heat.
What happens when two bodies have same temperature in contact Class 7?
As the temperature of the two bodies are same they are
in thermal equilibrium
which means there would be no transfer of heat energy between them. Flow of heat energy takes place when there is temperature difference between the bodies which are in contact with each other.
When two bodies are placed in thermal contact with each other and there is no heat flow the two bodies have the same temperature?
When two objects in contact with each other are at the same temperature, they are said to be in
thermal equilibrium
.
When two bodies at different temperatures are brought in contact heat flows naturally?
If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder. The effect of this transfer of energy usually, but not always, is an increase in the temperature of the colder body and a decrease in the temperature of the hotter
body
.
Under what circumstances the resultant temperature will be the average temperature when two substances are mixed together?
When two liquids at different temperatures are mixed and the resultant temperature is found to be the mean of
their temperatures then their densities must be equal
.
What is the difference between a substance at low temperature and one at high temperature?
Temperature is a state variable, and it is defined in a given state. … If they have different temperatures, they exchange energy in the
form of heat
(energy is transferred from the one with higher temperature to the one with lower temperature, according to the Second Law of Thermodynamics).
Will heat transfer if the temperature of two objects is the same class 7?
Ans.
Heat will not be transferred if
the temperature of two objects is the same.
Which of the following is correct for two bodies at different temperatures?
When two bodies are in thermal contact,
heat flows
from the body at higher temperature to the body at lower temperature till temperatures becomes equal. , only when thermal capacities of the two bodies are equal.
When two bodies are in contact heat flows from the hotter to the colder body when does heat stop flowing?
The heat will stop to flow
when same quantity of heat will remain in both the bodies
. It means equal heat will be in both the bodies.
When the two bodies A and B are in contact with one another and are in same temperature the bodies are said to be?
When two objects in contact with each other are at the same temperature, they are said to be in
thermal equilibrium
.
How do you represent temperature?
- Celsius (°C)
- Fahrenheit (°F)
- Rankine (°R or °Ra), which uses the Fahrenheit scale, adjusted so that 0 degrees Rankine is equal to absolute zero.
What is temperature called?
Temperature is a
measure of the average kinetic energy
of the particles of a substance. The higher the temperature of an object, the higher is its kinetic energy. … The units that are used to measure temperature are called degrees.
Does heat flow from one object to another?
Heat is the transfer of energy from a warmer object to a cooler object. … Heat can be transferred in three ways: by
conduction
, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact.
