Which of the following options is correct when two objects at the same temperature are kept in contact with each other?
No heat is transferred.
When two objects are at the same temperature and are kept in contact with each other, no heat is transferred between them. This is because heat
transfer occurs due to a temperature difference between objects. According to the zeroth law of thermodynamics, thermal equilibrium is achieved when two objects reach the same temperature, meaning there is no net flow of thermal energy. Hence, the correct option is:
No heat is transferred.
Similar Questions
A copper spoon is dipped in hot water. What happens to its other end?
- Generally, what is the process of heat transfer in liquids?
- Which of the following processes is primarily responsible for heat loss from a hot utensil?
A brass rod (thermal conductivity 109 J/s m K) has an area of cross section 0.04 m 2and length 20 cm. If the two end of the rod are maintained at a temperature difference of 200°C, the rate of heat flow through the rod is ________.
A black surface absorbs ________ as compared to a white surface, under identical conditions.
- Heat supplied to a system is measured in ______.
- The change of state from ice to water is accompanied by ______.
- _____ is a mode of heat transfer by actual motion of matter.
- _____ is the unit of thermal conductivity.
- A brick wall having a thickness of 24 cm has an inner surface temperature of \(25^{\circ}C\) and an outer surface temperature of \(5^{\circ}C\). The rate of heat loss through per square metre of the wall (thermal conductivity = \(0.15\ J/(s\cdot m \cdot K)\)) is:
Important Questions from Heat transfer
The process by which heat is transferred from the hotter end to the colder end of an object is known as ______.
If a liquid is heated in weightlessness the heat is transmitted through
An iron ball at 60°C is dropped in a mug containing water at 60°C. The heat will
The temperatures of two perfect black bodies A and B are 400 K and 200 K, respectively. If the surface area of A is twice that of B, the ratio of total power emitted by A to that by B is
The volume and temperature of a spherical cavity filled with black body radiation are V and 300 K, respectively. If it expands adiabatically to a volume 2V, its temperature will be closest to
