SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Put the thermometer in a freezer
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Put the thermometer in a cup of ice
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Put the thermometer in a cup of coffee
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Put the thermometer in a snow cone
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Detailed explanation-1: -The way a thermometer works is an example of heating and cooling a liquid. When heated, the molecules of the liquid in the thermometer move faster, causing them to get a little further apart. This results in movement up the thermometer.
Detailed explanation-2: -Part I: Heat Capacity of the Calorimeter The heat capacity, C, of a substance is the amount of heat required to raise the temperature of a given quantity of the substance by 1 degree. The relationship between heat capacity and specific heat is C = m×sp heat. Therefore, q = C×t and C = q ÷ t.
Detailed explanation-3: -A coffee cup calorimeter is a useful, simple device that can be used to measure the temperature change that accompanies a reaction. A Styrofoam™ cup is used because it is a good insulator. The cup will absorb (or supply) negligible amounts of heat during most General Chemistry experiments.
Detailed explanation-4: -Adding energy (heating) atoms and molecules increases their motion, resulting in an increase in temperature.