Q. 8.5 - An Introduction to General, Organic, and Biological Chemistry

Question

Which of the following statements describe the pressure of a gas?
a. the force of the gas particles on the walls of the container
b. the number of gas particles in a container
c. $4.5L$ of helium gas
d. $750$ Torr
e. $28.8 Ib/i{n}^2$

Step-by-Step Solution

Answer

Part(a) statement  describes the pressure of a gas 

Part(b) statement does not describes the pressure of a gas

Part(c) statement does not describes the pressure of a gas 

Part(d) statement  describes the pressure of a gas 

Part(e) statement describes the pressure of a gas 

Part(a) Step 1 : Given information

We are given statement the force of the gas particles on the walls of the container

Part(a) Step 2 : Simplify

As we know pressure is force per unit area, therefore statement shows pressure.

Part(b) Step 1 : Given information

We are given statement the number of gas particles in a container

Part(b) Step 2 : Simplify

As we know pressure is force per unit area, therefore number of moles can't be pressure.

Part(c) Step 1 : Given information

We are given statement $4.5L$ of helium gas

Part(c) Step 2 : Simplify

As we know pressure is force per unit area, therefore volume of container can't be pressure.

Part(d) Step 1 : Given information

We are given statement $750$ torr

Part(d) Step 2 : Simplify

As we know torr is unit of pressure. Therefore, statement shows pressure.

Part(e) Step 1 : Given information

We are given statement $28.8 Ib/i{n}^2$

Part(e) Step 2 : Simplify

As we know Ib/in² is unit of pressure. Therefore, statement shows pressure.