Which of the following statement is correct ?A. The presence of reacting species in a covered beaker is an example of open systemB. There is an exchange of energy as well as matter between the system and the surroundings in a closed systemC. The presence of reactants in a closed vessel made up of copper is an example of a closed systemD. The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system

Which of the following statement is correct ?A. The presence of reacti

1.	Which of the following statement is correct ?A. The presence of reacting species in a covered beaker is an example of open systemB. There is an exchange of energy as well as matter between the system and the surroundings in a closed systemC. The presence of reactants in a closed vessel made up of copper is an example of a closed systemD. The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system
Answer» Correct Answer - C For a closed vessel made of copper, no matter can exchange between the system and the surrounding but energy exchange can occur through its walls. Presence of reaction species in a covered beaker-closed system and exchange of matter as well as energy-open-system. Presence of reactant in a closed vessel closed system and presence of reactant in thermos flask-isolated system

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