Question

1. when pressure increases then the volume must...

increase
decrease

1. charles law deals with what properties?

pressure/temperature
volume/temperature
pressure/volume
volume/temperature/pressure

1. a gas occupies 4.98 l at 2.6 atm of pressure. what volume does it occupy at 1.8 atm pressure?

12.9 l
7.2 l
0.72 l
3.44 l

Explanation:

Step1: Recall Boyle's Law

Boyle's Law states that for a given mass of gas at constant temperature, $P_1V_1 = P_2V_2$.

Step2: Solve for question 1

Boyle's Law shows an inverse - relationship between pressure and volume. When pressure increases, volume must decrease.

Step3: Solve for question 2

We have $P_1 = 2.6$ atm, $V_1=4.98$ L, $P_2 = 1.8$ atm. Using $P_1V_1 = P_2V_2$, we can find $V_2=\frac{P_1V_1}{P_2}=\frac{2.6\times4.98}{1.8}\approx7.2$ L.

Step4: Recall Charles' Law

Charles' Law states that for a given mass of gas at constant pressure, $\frac{V_1}{T_1}=\frac{V_2}{T_2}$, which deals with volume and temperature.

Answer:

1. Decrease
2. 7.2 L
3. volume/temperature