Call
  • According to ,
    $color(red)(v prop1/p" "$when $" "color(green)(T" & "n$ constant.
  • According to Charle's Law,

    $color(red)(v prop T" "$when $" "color(green)(p" "&" "n$ constant.

  • According to ,

    $color(red)(v prop n)" "$when $" "color(green)(p" "&" "T"$constant

According to the theory of variation, We get $color(red)(ul(bar(|color(green)(v prop (nT)/p)|$

We can write this in this form, $color(green)(v=R cdot (nT)/p)=>color(red)(ul(bar(|color(green)(pv=nRT)|$$" "$[R=universal gas constant]

Hope it helps...
Thank you...