Question
When the pressure inside the system is greater than the pressure outside it, the work is done ______.
- By the system
- On the system
- By the surrounding
- All of the above
Hint:
Apply thermodynamics fundamental.
The correct answer is: By the system
When the pressure inside the system is greater than the pressure out side it the work done is by the system on the system and by the surrounding.
Related Questions to study
When two systems 1 and 2 are in thermal equilibrium, _______
When two systems 1 and 2 are in thermal equilibrium, _______
When the heat is removed from a system, its internal energy _____.
When the heat is removed from a system, its internal energy _____.
________ is an invisible transfer of energy into or out of a system.
________ is an invisible transfer of energy into or out of a system.
Heat is added or removed from a system by _____.
Heat is added or removed from a system by _____.
When the system is touched to a hot reservoir its internal energy _____.
When the system is touched to a hot reservoir its internal energy _____.
When the work is done on the system its internal energy _____.
When the work is done on the system its internal energy _____.
Two systems in contact are in thermal equilibrium. This means that ____.
Two systems in contact are in thermal equilibrium. This means that ____.
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 _____.
_____ is a visible transfer of energy into or out of a system.
_____ is a visible transfer of energy into or out of a system.
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 ____.
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 ________.
A pot of water is heated, what happens at a molecular level?
A pot of water is heated, what happens at a molecular level?
743 J = ____ cal
743 J = ____ cal
847 cal = ___ kcal
847 cal = ___ kcal
625 cal = ____ J
Energy is the ability to do work which is measured in different units. Calorie and Joule are the units of energy which are proportionate to each other. This implies any change in the value of calories will change its equivalent value in joules. The relation between calorie and joule can be numerically written as : 1 calorie = 4.2 joules approx.
Hence, 625 cal= (625* 4.2)= 2,615 joules.
625 cal = ____ J
Energy is the ability to do work which is measured in different units. Calorie and Joule are the units of energy which are proportionate to each other. This implies any change in the value of calories will change its equivalent value in joules. The relation between calorie and joule can be numerically written as : 1 calorie = 4.2 joules approx.
Hence, 625 cal= (625* 4.2)= 2,615 joules.
