1. The fundamental assumption of Avogadro's Law is that: A) All gases have identical molecular weights B) Equal volumes of gases contain equal numbers of molecules C) Gases always expand when heated D) Pressure remains constant in all reactions 2. According to Charles's Law.what happens to the volume of a gas when temperature increases (at constant pressure)? a) Volume increases b) Volume decreases c) Volume stays the same d) Volume becomes zero 3. Boyle's Law states that pressure and volume are: a) Directly proportional b) Inversely proportional c) Not related d) Always equal 4. At constant volume ,if you double the temperature of a gas (in Kelvin), what happens to the pressure? a) Doubles b) Halves c) Stays the same d) Becomes zero 5. Which temperature scale must be used when calculating gas law problems? a) Celsius b) Fahrenheit c) Kelvin d) Rankine

Question

1. The fundamental assumption of Avogadro's Law is that: A) All gases have identical molecular weights B) Equal volumes of gases contain equal numbers of molecules C) Gases always expand when heated D) Pressure remains constant in all reactions 2. According to Charles's Law.what happens to the volume of a gas when temperature increases (at constant pressure)? a) Volume increases b) Volume decreases c) Volume stays the same d) Volume becomes zero 3. Boyle's Law states that pressure and volume are: a) Directly proportional b) Inversely proportional c) Not related d) Always equal 4. At constant volume ,if you double the temperature of a gas (in Kelvin), what happens to the pressure? a) Doubles b) Halves c) Stays the same d) Becomes zero 5. Which temperature scale must be used when calculating gas law problems? a) Celsius b) Fahrenheit c) Kelvin d) Rankine

Answer 1

1. The correct answer is B) Equal volumes of gases contain equal numbers of molecules. Avogadro's Law states that equal volumes of all gases, at the same temperature and pressure, contain an equal number of molecules.2. The correct answer is a) Volume increases. According to Charles's Law, the volume of a gas is directly proportional to its temperature (in Kelvin) when pressure is held constant. Therefore, when the temperature increases, the volume of the gas also increases.3. The correct answer is b) Inversely proportional. Boyle's Law states that the pressure of a gas is inversely proportional to its volume when temperature is held constant. This means that as the volume of the gas increases, the pressure decreases, and vice versa.4. The correct answer is a) Doubles. According to Gay-Lussac's Law, the pressure of a gas is directly proportional to its temperature (in Kelvin) when volume is held constant. Therefore, if the temperature of a gas is doubled, the pressure will also double.5. The correct answer is c) Kelvin. When calculating gas law problems, the Kelvin temperature scale used because it starts at absolute zero, which is the lowest possible temperature. This allows for accurate calculations of gas laws, as the Kelvin scale is directly related to the energy of the gas molecules.

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