Physics
Grade-9
Easy
Question
During an isothermal process 200 J of heat are removed from a trapped gas. The work is done _______.
- By the gas
- On the gas
- On the surrounding
- None
Hint:
The work done is on the gas.
The correct answer is: On the gas
An isothermal process is a thermodynamic process in which the temperature of a system remains constant. The transfer of heat into or out of the system happens so slowly that thermal equilibrium is maintained.
Related Questions to study
Physics
A hot reservoir is touched to a system, which of the following may happen?
A hot reservoir is touched to a system, which of the following may happen?
PhysicsGrade-9
Physics
When the pressure inside the system is greater than the pressure outside it, the work is done ______.
When the pressure inside the system is greater than the pressure outside it, the work is done ______.
PhysicsGrade-9
Physics
When two systems 1 and 2 are in thermal equilibrium, _______
When two systems 1 and 2 are in thermal equilibrium, _______
PhysicsGrade-9
Physics
When the heat is removed from a system, its internal energy _____.
When the heat is removed from a system, its internal energy _____.
PhysicsGrade-9
Physics
________ is an invisible transfer of energy into or out of a system.
________ is an invisible transfer of energy into or out of a system.
PhysicsGrade-9
Physics
Heat is added or removed from a system by _____.
Heat is added or removed from a system by _____.
PhysicsGrade-9
Physics
When the system is touched to a hot reservoir its internal energy _____.
When the system is touched to a hot reservoir its internal energy _____.
PhysicsGrade-9
Physics
When the work is done on the system its internal energy _____.
When the work is done on the system its internal energy _____.
PhysicsGrade-9
Physics
Two systems in contact are in thermal equilibrium. This means that ____.
Two systems in contact are in thermal equilibrium. This means that ____.
PhysicsGrade-9
Physics
Work is done on or by the particles of a gas system by _____.
Work is done on or by the particles of a gas system by _____.
PhysicsGrade-9
Physics
_____ is a visible transfer of energy into or out of a system.
_____ is a visible transfer of energy into or out of a system.
PhysicsGrade-9
Physics
The volume of the system does not change. Such a system is called ____.
The volume of the system does not change. Such a system is called ____.
PhysicsGrade-9
Physics
The temperature of the system does not change. Such a system is called ________.
The temperature of the system does not change. Such a system is called ________.
PhysicsGrade-9
Physics
A pot of water is heated, what happens at a molecular level?
A pot of water is heated, what happens at a molecular level?
PhysicsGrade-9
Physics
743 J = ____ cal
743 J = ____ cal
PhysicsGrade-9