Q. 8.4 - An Introduction to General, Organic, and Biological Chemistry

Question

Identify the property of a gas that is measured in each of the following:

1. $425 K$
   
2. $1.0 atm.$
   
3. $10.0 L$
   
4. $0.50$mole of $\mathrm{He}$
   

Step-by-Step Solution

Answer

Property of a gas that is measured in each of the following are:

(a) Temperature

(b) Pressure  

(c) Volume  

(d) Amount 

Part (a) Step 1: Given Information

We need to identify the property of a gas that is measured as $425 K$

Part (a) Step 2: Explanation

As property measured has unit of measurement as $K$. Hence, measured quantity is temperature. It is denoted by $T$. It is determining factor of kinetic energy of gas molecules.

Part (b) Step 1: Given Information

We need to identify the property of a gas that is measured as $1 atm$

Part (b) Step 2: Explanation

As property measured has unit of measurement as $atm$. This unit defines force exerted by gas against wall of container. Hence, measured quantity is pressure. It is denoted by $P$.

Part (c) Step 1: Given Information

We need to identify the property of a gas that is measured as $10.0 L$

Part (c) Step 2: Explanation

The measured quantity $10.0 L$ defines space occupied by gas and $L$ is unit of measurement of volume. Hence, property is volume. It is denoted by $V$ .  

Part (d) Step 1: Given Information

We need to identify the property of a gas that is measured as $0.50$ mole of $\mathrm{He}$

Part (d) Step 2: Explanation

The measured quantity $0.50$mole defines quantity of gas. It is unit of amount. Hence, property of gas measured in amount. It is denoted by $n$.