Which of the following equations is correct for one mole of gas?
1
V1/V2 = \(\rm T_1^2/T_2^2\) (at constant pressure)
2
V1/V2 = \(\rm\sqrt{T_1}/\sqrt{T_2}\) (at constant pressure)
3
V1/V2 = T1 /T2 (at constant pressure)
4
p1/V1 = p1/V2 (at constant temperature)