Question

which of these properties is/are characteristic(s) of gases?
a relatively large distances between molecules
b formation of homogeneous mixtures regardless of the nature of gases
c high compressibility
d a, b, and c.
question 20
specific heat is defined as the amount of heat required to raise the temperature of one gram of a substance by one degree celsius.
a true
b false

Explanation:

• For the first question:
• Gases have relatively large distances between molecules.
• Gases can form homogeneous mixtures regardless of the nature of gases (due to high molecular motion).
• Gases have high compressibility (because of large intermolecular spaces). So all A, B, and C are correct.
• For the second question:
• Specific heat is indeed defined as the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

Answer:

• First question: D. A, B, and C.
• Second question: A. True.