What is the difference between gay lussacs law and charles law?? They have the same mathematical expression!

Hi!

                                     I think you have mistaken in learning/reading about these laws. Gay Lussac's Law relates the Pressure of the Gas with it's Temperature.It states that at constant volume,the pressure of a fixed amount of gas is directly proportional to it's Temperature,i.e.
                                                                                   
                                                                                                                                                                          p α T
 Whereas, Charles' Law relates the Volume of a fixed amount of gas to it's Temperature.It states that at constant pressure,The Volume of a fixed amount of gas is directly proportional to it's absolute Temperature,i.e.,

                                                                                                                                                                        V α
T


                                                                                                                                                                                                                                                                                                             Hope It Helps! :)
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