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(A) The combustion of methane $(CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O)$ is an exothermic process.In System $A$,the temperature rises because the system

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System $A$    System $B$        Adiabatic system    Diathermic system

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(A) The combustion of methane $(CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O)$ is an exothermic process.In System $A$,the temperature rises because the system is adiabatic,meaning no heat can escape to the surroundings.In System $B$,the temperature remains constant because the system is diathermic,allowing heat to be exchanged with the surroundings to maintain thermal equilibrium.Therefore,System $A$ is an adiabatic system and System $B$ is a diathermic system.

What happens when methane undergoes combustion in systems $A$ and $B$ respectively?

System $A$ System $B$

Temperature rise Temperature remains same

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What happens when methane undergoes combustion in systems $A$ and $B$ respectively? System $A$ System $B$ Temperature rise Temperature remains same