Review the following statements regarding properties of real and ideal gases. Identify the statement that is not correct? Group of answer choices The ratio PV/RT = 1 for one mole of an ideal gas. The ratio PV/nRT < 1 for one mole of a real gas because of repulsive interactions between the molecules. The ratio PV/nRT > 1 for one mole of a real gas because of the finite size of the molecules. At low temperatures, the attractive forces between molecules cause a real gas to deviate from ideal gas behavior. At high pressures, the finite size of the molecules causes a real gas to deviate from ideal gas behavior

.The ratio PV/nRT < 1 for one mole of a real gas because of repulsive interactions between the molecules.

Explanation:

The expression PV/nRT is referred to as the compressibility factor commonly designated as Z.

This compressibility factor (Z) for real gas is often less than 1. Z<1 means attraction forces are dominant in the system.

Hence, Z<1 implies attractive and not repulsive force dominance in the system.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied