GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The attractive forces between particles are negligible, and the particles act independently of one another.
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As the temperature increases, the gas particles move faster.
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Either A or B
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None of the above
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Detailed explanation-1: -The kinetic molecular theory can be used. Temperature is increased, so the average kinetic energy and the rms speed should also increase. This means that the gas molecules will hit the container walls more frequently and with greater force because they are all moving faster. This should increase the pressure.
Detailed explanation-2: -Charles’ law (Gay-Lussac’s law) This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.
Detailed explanation-3: -Gases expand much more than the liquids and the solids. The greater the attraction between the molecules, the smaller the expansion will be. Because intermolecular forces of attraction are less in gases, more in liquid and much more in solid.
Detailed explanation-4: -Expansion of Gases. Gases also expand on heating. Their volume expansion is very much greater than that of liquids. If a gas is heated at constant pressure, its volume increases and if a gas is heated at constant volume, its pressure increases due to expansion.