Question

PLEASE HELP!!! A dive tank at 3000 psi has a temperature of 30° C on the boat. What would the pressure be when diving in 14° C water? Assume the volume and number of particles stayed the same.

Answer 1

The pressure would be 2841.59 psi

Further explanation

Gay Lussac's Law

When the volume is not changed, the gas pressure in the tube is proportional to its absolute temperature

`\tt (P_1)/(T_1)=(P_2)/(T_2)`

P₁=3000 psi

T₁ = 30+273=303 K

T₂=14+273=287 K

`\tt P_2=(P_1.T_2)/(T_1)\\\\P_2=(3000* 287)/(303)\\\\P_2=2841.59~psi`