Question

The correct representation for Charles' law is .

• A. $\frac{V_1}{T_1}=\frac{V_2}{T_2}$
• B. $V_1\times T_1=V_2\times T_2$
• C. $\frac{V_1}{T_2}=\frac{V_2}{T_1}$

Answer 1

The correct option is A $\frac{V_1}{T_1}=\frac{V_2}{T_2}$

Charles' law is stated as follows:

"The volume of a given mass of gas at constant pressure is directly proportional to its temperature on the Kelvin Scale."

Let $V_1$ be the volume of a certain mass of a gas at temperature $T_1$ and pressure, p. If the temperature is changed to $T_2$, while keeping the pressure constant, its volume changes to $V_2$ .
As $V\alpha T$ or $\frac{V}{T}=constant$.
Hence, the relationship among the four variables $V_1$ , $T_1$ ,$V_2$ , and $T_2$ is as follows:

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$ (Pressure and mass constant)