Answer is: <span>the pressure of the gas is 9,2 atm. </span>p₁ = 4,0 atm. T₁ = 300 K. V₁ = 5,5 L. p₂ = ? T₂ = 250 K. V₂ = 2,0 L. Use combined gas law - the volume of amount of gas is proportional to the ratio of its Kelvin temperature and its pressure.<span> </span>p₁V₁/T₁ = p₂V₂/T₂. 4 atm · 5,5 L ÷ 300 K = p₂ · 2,0 L ÷ 250 K. 0,0733 = 0,008p₂. p₂ = 9,2 atm.
1. No two magnetic lines intersect 2.They always form closed loops 3. Outside they seems to travel from north to south and inside south to north 4. It is vector quantity.
