<Dd> P 1 V 1 T 1 P 2 = V 3 T 2 (8) (\ displaystyle (\ frac (P_ (1) V_ (1)) (T_ (1) P_ (2))) = (\ frac (V_ (3)) (T_ (2))) \ qquad (8)) </Dd> <Dd> And finally substituting the value of P 2 (\ displaystyle P_ (2)) from Eq. (6) into Eq. (8) we find: </Dd> <Dd> P 1 V 1 T 3 T 1 T 2 P 3 = V 3 T 2 (9) (\ displaystyle (\ frac (P_ (1) V_ (1) T_ (3)) (T_ (1) T_ (2) P_ (3))) = (\ frac (V_ (3)) (T_ (2))) \ qquad (9)) </Dd> <Dd> which simplifies to: </Dd>

The effect of combining individual equations on k