Stoichiometry
Kopp's rule is useful for the determination of

Heat capacities of gases
Heat capacities of solids
Activation energy
Molal heat capacities of gases

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Stoichiometry
A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container

Will be less than 298 K
Will be 298 K
Can not be determined
Will be greater than 298 K

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