

Stoichiometry - Engineering
Q1: The heat capacity of most substances is greater for the __________ state.A solid
B liquid
C gaseous
D none of these
ANS:B - liquid The heat capacity of most substances is greater for the liquid state. Heat capacity is a measure of the amount of heat energy required to change the temperature of a substance by a certain amount. In general, liquids have a higher heat capacity compared to solids or gases because they have greater molecular mobility. This means that in liquids, molecules can move more freely compared to solids, allowing them to absorb more heat energy per degree of temperature change. Gases typically have lower heat capacities compared to liquids because their molecules are much more spread out and have higher degrees of freedom, resulting in less energy being required to raise their temperature. So, among the given options, the heat capacity is generally greater for the liquid state. Properties of Liquids:
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