A quantity of gas occupies a volume of 804cm³ at a temperature of 127degree c . At what temperature will the volume of the gas be 603cm³ assuming that there is no change in the pressure

To convert Celsius to Kelvin, add 273.15.

Initial Volume ($V_1$) = $804 \, \text{cm}^3$
Initial Temperature ($T_1$) = $400.15 \, \text{K}$
Final Volume ($V_2$) = $603 \, \text{cm}^3$
Final Temperature ($T_2$) = ?

Charles's Law states that for a fixed amount of gas at constant pressure, the volume is directly proportional to its absolute temperature:

To find $T_2$, rearrange the formula:

The temperature at which the volume of the gas will be $603 \, \text{cm}^3$ is approximately $27.0 \, ^\circ\text{C}$.