Engineering Thermodynamics
According to Dalton's law, the total pressure of the mixture of gases is equal to

Sum of the partial pressures of all
Sum of the partial pressures of all divided by average molecular weight
Greater of the partial pressures of all
Average of the partial pressures of all

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Engineering Thermodynamics
First law of thermodynamics

Provides relationship between heat, work and internal energy
Enables to determine change in internal energy of the system
All of these
Does not enable to determine change in entropy

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