1. Which of the following describes Dalton\'s Law? A) The pressure of a gas is p

Question

1. Which of the following describes Dalton's Law?
A) The pressure of a gas is proportional to its volume
B) Only one variable can be changed from an initial state to a final state for a gas
C) The total pressure of a gas mixture is the sum of the partial pressures of each in the mixture
D) The temperature of a gas is proportional to its volume

2) Which of the following processes always results in an increase in the energy of a system?
A) The system loses heat and has to work done on it by the surroundings
B) The system gains heat and does work on the surroundings?
C) The system gains heat and has work done on it by the surroundings
D) None of these is always true
E) The system loses heat and does work on the surroundings

3) Deviations from the ideal gas law are greater at
A) low temperature and low pressures
B) high temperatures and low pressures
C) high temperatures and high pressures
D) low temperatures and high pressures

Explanation / Answer

1.Dalton’s Law states that "The total pressure of a mixture of gases equals the sum of the pressures that each would exert if it were present alone." Hence OPTION-C

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