Multiple Choice
Which if the following defines the term evaporation?
a) The conversion of a liquid into a vapor.
b) The conversion of a solid into a vapor.
c) The conversion of a vapor into a liquid.
d) The conversion of a vapor into a solid.
3. Water
Properties of Water- Thermal
Multiple Choice
The amount of heat required to change the temperature of 1 g of any substance by 1°C is defined as __________.
A
1 calorie
B
the heat of vaporization of that substance
C
1 kilocalorie
D
the specific heat of that substance
Verified step by step guidance1
Understand the concept of specific heat: Specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. It is a property that is intrinsic to the material.
Identify the units involved: The problem specifies 1 gram of a substance and a temperature change of 1 degree Celsius. This aligns with the definition of specific heat.
Differentiate between similar terms: Recognize that 'calorie' and 'kilocalorie' are units of energy, while 'heat of vaporization' refers to the energy required to change a substance from liquid to gas, not to change its temperature.
Relate the definition to the options: The definition provided in the problem matches the concept of specific heat, which is the correct term for the amount of heat required to change the temperature of 1 g of a substance by 1°C.
Conclude with the correct term: Based on the understanding of the definition and the options provided, the correct term is 'the specific heat of that substance.'
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