WAEC Chemistry 2025 Theory — Question 39
Question 39 of 70 from the West African Examinations Council (WAEC) Chemistry 2025 Theory paper, with the correct answer and a full explanation.
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4(a)(i). State Dalton's law of partial pressure.
Model answer
Dalton's law of partial pressure states that the total pressure exerted by a mixture of gases that do not react together chemically is the sum of the partial pressures of the individual gases: PT = PA + PB + PC + ..., where PA, PB, PC are the partial pressures of the individual gases.
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