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EmSAT Chemistry Flashcards

6 cards from real EMSAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What is Boyle's Law for gases?

    Answer: P ∝ 1/V (at constant T)

    Boyle's Law states that at constant temperature, the pressure of a gas is inversely proportional to its volume: P ∝ 1/V, or PV = constant.

  2. What is the ideal gas law?

    Answer: PV = nRT

    The ideal gas law is PV = nRT, where P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature in Kelvin.

  3. At STP, what is the molar volume of an ideal gas?

    Answer: 22.4 L/mol

    At STP (Standard Temperature and Pressure: 0°C and 1 atm), one mole of any ideal gas occupies 22.4 liters.

  4. What does Charles's Law state?

    Answer: Volume and temperature are directly proportional at constant pressure

    Charles's Law states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature (in Kelvin): V/T = constant.

  5. Which gas law relates pressure and temperature at constant volume?

    Answer: Gay-Lussac's Law

    Gay-Lussac's Law states that at constant volume, the pressure of a gas is directly proportional to its absolute temperature: P/T = constant.

  6. What is Dalton's Law of Partial Pressures?

    Answer: Total pressure of a gas mixture equals the sum of partial pressures of each gas

    Dalton's Law states that the total pressure exerted by a mixture of gases equals the sum of the partial pressures of each individual gas: P_total = P₁ + P₂ + P₃ + ...

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  1. emsat.moe.gov.ae — Test delivery, eligibility, time limit, retake fee, retake policy, score release, exam format, exam information · verified Oct 2026
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