Question

_______ law states the following: At a constant pressure, the volume of a fixed mass or quantity of gas varies directly with the absolute temperature. A. Charles’s B. Boyle’s C. Pascal’s D. Robert’s

Answer 1

Option A

Step-by-step explanation:

Charles law is a law stating that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.

At a constant pressure, the volume of a fixed mass or quantity of gas varies directly with the absolute temperature is the Charles law.

Boyle law is not correct because that is for gases kept at constant temperature.

Pascal law is not for constant pressure but for varying pressure.

Robert's law is not correct since it does not deal with gas.

SO correct choice is

Option A

Answer 2

Answer: Option (A) Charles's

Step-by-step explanation:
According to Charles' law, the volume (V) of a gas is directly proportional to the absolute temperature (T) at the constant pressure (P).

V ∝ T
V = kT (where k is the constant of proportionality)

Hence the correct option is (A).