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A system that does no work but which transfers heat to the surroundings has?
Wiki User
∙ 13y ago
I think you are thinking of a conductor. For example, a frying pan is a conductor. The stovetop flame provides the heat, the pan conducts the heat to warm the food, and the food itself, thanks to the conducted heat, undergoes the chemical reactions involved in cooking.
Wiki User
∙ 13y ago
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What is the difference between isolated system and non flow adiabatic system?
An isolated system is a system that doesn't not interact with its surroundings. No interactions at all. No work, no heat transfer. An adiabatic system is one that does not permit heat transfer between the system and its surroundings. It can do work on the surroundings.
A system that does no work but which receives heat from the surroundings has?
A lower temperature.
What is it called when a substance releases energy to its surroundings?
There are two ways that a substance ( called the System ) may release energy to the Surroundings :( 1 ) Heat may be released by heat transfer from the System to the Surroundings. Heat transfer from the System to the Surroundings requires the System temperature to exceed the temperature of the Surroundings and the presence of one or more heat transfer modes ( conduction, convection, and/or radiation.( 2 ) Work done by the System of on the Surroundings corresponding to a force moving through a distance, such as when the substance expands. Substance confined to a cylinder with a piston may expand, doing work on the Surroundings.
What signs on q and w represent a system that is doing work on the surroundings as well as losing heat to the surroundings?
q=+,w=-
What is the change in the internal energy of a system that absorbs 2.500J of heat and that does 7.655J of work on the surroundings is?
5.155
A system gives off 196KJ of heat to the surroundings and the surroundings do 420 KJ of work on the system What is the change in internal energy of the system?
Δ E = -196 kj + 420 kJ = 224 kJ
Can work done on a system decrease its thermal energy?
Yes. As an example: if you define a refrigerator as your system, the work done on the system causes heat to be expelled from the system to the surroundings. The net heat expelled will be equal to the work input plus the decrease in its thermal energy.
What is the change in internal energy if 20 joules of heat is released from a system and the system does 50 joules of work on the surroundings?
-70 Joules
Which one of the following conditions would always result in an increase in the internal energy of a system?
the system gains heat and does work on the surroundings
Is flying bird open system or closed system or isolated system according to thermodynamics?
The bird will be best represented as an open system if you include the respiration of the bird and the feathers it drops occasionally. If you neglect those factors you could represent it as a closed system. It will NOT be an isolated system since it does work on its surroundings and its surroundings do work on it - along with some amount of heat transfer from the bird to its surroundings.
Which thermodynamic process takes place when work is done on the system but no energy is transferred to or from the system as heat?
If work is done on a system as compression work and no heat interaction is allowedbetween the system and the surroundings, then you have an adiabatic compression.
A system delivers 225 J of heat to the surroundings while delivering 645 J of work Calculate the change in the internal energy ΔE of the system?
∆E (internal energy) = q (heat flow) + w (work) The question says that heat is delivered to the surroundings (therefore lost by the system so (-)). Also, It says in the same statement work is being delivered, so work is also negative. ∆E = -225J + (-645J) = -870
