Question

which of the following is true for four moles of an ideal gas?
a) pv=nrt b) pv=rt c)pv=2rt d)pv=4rt​

Answer 1

Answer:

a) pv=nrt

Explanation:

n indicates number of moles

Answer 2

Answer:

PV = 4RT is true for four moles of an ideal gas.

Explanation:

A gas which follows Boyle's law, Charles's law and Avogadro's law in all conditions of temperature and pressure is called an ideal gas.

By combining these laws, we get a single equation which is called the ideal gas equation.

V∝ 1/P (Boyle's law- T and n are constants)

V ∝ T (Charle's law- P and n are constants)

V ∝ n (Avogadro's law- P and T are constants)

By combining the above three, we get

V ∝ nT/P or V = nRT/P

On rearranging the above equation, PV = nRT. This is the ideal gas equation.

Given: n=4

Substituting in the ideal gas equation,

PV = 4RT