Question

A 10.0 L balloon contains helium gas at a pressure of 655 mmHg. What is the new pressure, in mm Hg, of the helium gas if the volume is 20.0 L and if there is no change in temperature or quantity? 6550 mmHg 1000 mm Hg 1310 mmHg 300 mm Hg

Answer 1

327.5 mmHg

Step-by-step explanation:

By Boyle's law, P1V1=P2V2

10 L * 655 mmHg = 20 L * x

solve for x

x= (10*655)/20

x=327.5 mmHg