Short Answer problem, but you do need to explain your answers. Of the system des

Question

Short Answer problem, but you do need to explain your answers. Of the system descriptions given below, which ones specify the same system and which different systems?

(a) A rigid container of volume V, with walls impermeable to matter, is divided into two compartments by a membrane also impermeable to matter. One compartment contains 500 g of gasoline, the other 100 g of oxygen gas.

(b) Same as in part (a), except that the membrane has been ruptured and the gasoline and oxygen are mixed but not chemically combined.

(c) Same as in part (a), except that the molecules of gasoline are at a higher temperature.

(d) Same as in part (b) except that most of the molecules of gasoline and oxygen have combined and formed water and carbon dioxide.

Can someone help me with this and give a good explanation to how you arrived at your answer. Thanks

Explanation / Answer

as per book definition, The system is the part of the universe being studied,there are three types of system:Open Close and Isolated.

As container is having rigid boundary, it is A mechanically isolated system – not allowing exchange of work:

Ans a) A closed system with walls permeable to energy but impermeable to matter is one where a quantity or series of quantities cannot enter or leave the system. So this is closed system as gasoline and air cannot enter or leave either side of membrane but energy can.

Ans b) It is also a closed system without wall and both the components are at same temperature or at therrmodynamic equillibrium.

The system consists of those molecules which are reacting. there is no reaction between two components.

Ans c) A closed system with walls permeable to energy but impermeable to matter , where wall will transfer energy from gasoline to air.

Ans d) A closed sytem with exothermic reaction as when gasoline combines with air it is a exothermic reaction so container will release energy in its surrounding

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