The correct answer is a) Volume is directly proportional to the number of moles.
The Volume is directly proportional to the number of moles according to the Ideal Gas Equation.
Ideal Gas Equation is given as:
PV = nRT
where, P is the Pressure of the gas
V is the Volume of the gas
n is the number of moles of gas
R is the Universal Gas Constant
T is the Temperature
Since, it can be seen from the Ideal Gas Equation that the Volume is directly proportional to the number of moles, Universal Gas Constant and Temperature.
Similarly, Pressure is directly proportional to the number of moles, Universal Gas Constant and Temperature.
Also, the Pressure is inversely proportional to the volume of the gas.
Learn more about Ideal Gas Equation here, https://brainly.com/question/15379358
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