Gaseous State
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Questions and Answers

What is the graphical representation of Charles' Law called?

  • Isotherm
  • Isochor
  • Isobar (correct)
  • Isopleth

What is the molar gas volume at a given temperature and pressure?

  • 23.4 L mol⁻¹
  • 24.4 L mol⁻¹
  • 21.4 L mol⁻¹
  • 22.4 L mol⁻¹ (correct)

What is the value of the pressure coefficient, α, in Kelvin?

  • 6.022 × 10^(-3) K^(-1)
  • 2.73 × 10^(-3) K^(-1)
  • 1.38 × 10^(-3) K^(-1)
  • 3.661 × 10^(-3) K^(-1) (correct)

What is the unit of the gas constant R in the ideal gas equation?

<p>J mol⁻¹ K⁻¹ (B)</p> Signup and view all the answers

What is the ideal gas equation?

<p>PV = nRT (B)</p> Signup and view all the answers

According to Avogadro's Law, what is true about equal volumes of any two gases at the same temperature and pressure?

<p>They have the same number of molecules (A)</p> Signup and view all the answers

Which of the following laws states that the volume of a gas is directly proportional to the number of moles of gas?

<p>Charles' law (C)</p> Signup and view all the answers

What is the value of the Boltzmann constant k?

<p>1.38 × 10⁻¹⁶ ergs mol⁻¹ degree⁻¹ (A)</p> Signup and view all the answers

What is the graphical representation of Gay-Lussac's Law called?

<p>Isobar (D)</p> Signup and view all the answers

What is the relationship between pressure and volume of a gas at constant temperature according to Boyle's law?

<p>P ∝ 1/V (D)</p> Signup and view all the answers

What is the value of the ideal gas constant, R, in Nm/mol·K?

<p>8.314 Nm/mol·K (B)</p> Signup and view all the answers

What is the unit of pressure in a manometer?

<p>kgf/cm² (B)</p> Signup and view all the answers

What is the unit of the gas constant R in the unit of work or energy?

<p>J mol⁻¹ K⁻¹ (B)</p> Signup and view all the answers

According to Boyle's law, what is the relationship between pressure and volume of a gas at constant temperature?

<p>P ∝ 1/V (C)</p> Signup and view all the answers

What is the difference between gauge pressure and absolute pressure?

<p>Gauge pressure is relative to atmosphere, while absolute pressure is relative to vacuum. (B)</p> Signup and view all the answers

What is the graph between P and V at constant temperature called?

<p>Isotherm (B)</p> Signup and view all the answers

What is the formula that relates pressure, volume, and a constant at constant temperature?

<p>PV = k (C)</p> Signup and view all the answers

Who discovered the relationship among gas variables, such as pressure, volume, and temperature?

<p>Robert Boyle (B)</p> Signup and view all the answers

What is the unit of pressure in a system where the pressure is measured relative to the atmosphere?

<p>mm Hg (C)</p> Signup and view all the answers

What is the relationship between the pressure and volume of a gas at constant temperature according to Boyle's law?

<p>P ∝ 1/V (B)</p> Signup and view all the answers

What is the purpose of a manometer in measuring the pressure of a gas?

<p>To measure the pressure of a pure gas (D)</p> Signup and view all the answers

What is the formula that relates pressure, volume, and a constant at constant temperature?

<p>P1V1 = P2V2 = K (B)</p> Signup and view all the answers

What is the unit of pressure in a system where the pressure is measured relative to a perfect vacuum?

<p>Pa (B)</p> Signup and view all the answers

What is the graphical representation of the relationship between pressure and volume of a gas at constant temperature?

<p>Isotherm (C)</p> Signup and view all the answers

What is the relationship between pressure and temperature of a gas?

<p>Pressure is directly proportional to temperature (A)</p> Signup and view all the answers

What is the most commonly used unit of pressure in everyday applications?

<p>Bar (C)</p> Signup and view all the answers

What type of manometer is typically used to measure small pressure differences?

<p>Differential manometer (C)</p> Signup and view all the answers

What is the S.I. unit of pressure?

<p>Pascal (D)</p> Signup and view all the answers

What is the relationship between pressure and volume of a gas at constant temperature according to Boyle's law?

<p>Pressure is inversely proportional to volume (D)</p> Signup and view all the answers

What is the unit of pressure that is equivalent to 100 kilonewtons per square meter?

<p>Bar (B)</p> Signup and view all the answers

What is the direct relationship between aqueous tension and temperature?

<p>Directly proportional (C)</p> Signup and view all the answers

What is the condition for Dalton's law of partial pressures to be applicable?

<p>The component gases do not react with each other (C)</p> Signup and view all the answers

What is the formula to calculate the partial pressure of a gas (P1) in a mixture?

<p>P1 = PTotal × X1 (C)</p> Signup and view all the answers

What is the relationship between the density of a gas and its molar mass?

<p>Directly proportional (D)</p> Signup and view all the answers

What is the formula to calculate the total pressure (PTotal) of a mixture of gases?

<p>PTotal = P1 + P2 + P3 + ... (A)</p> Signup and view all the answers

What is the relationship between relative humidity (RH) and partial pressure of water vapor in air?

<p>RH is directly proportional to partial pressure of water vapor (D)</p> Signup and view all the answers

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