Question

Two vessels of capacities 2litre and 1.5 litre containing oxygen at 100mm pressure and hydrogen at 750mm pressure are connected through a valve. What will be the final pressure assuming the temperature remains constant

Answer 1

Answer:

85/76

Explanation:

P total = P1 + P2 first convert P1 to atm=100/760

& convert P2 to atm = 750/760

add them

100/760 + 750/760 = 850/760

85/76 atm

which is close to 1.12atm

Answer 2

Explanation:

P1 + P2

[ ᴄᴏɴᴠᴇʀᴛ P1 ᴛᴏ ᴀᴛᴍ = 100/760 ]

[ ᴄᴏɴᴠᴇʀᴛ P2 ᴛᴏ ᴀᴛᴍ = 750/760 ]

ᴀᴅᴅɪɴɢ ʙᴏᴛʜ ᴏғ ᴛʜᴇᴍ :-

100/760 + 750/760

= 850/760

= 85/76 ᴀᴛᴍ...

ᴡʜɪᴄʜ ɪs ᴄʟᴏsᴇ ᴛᴏ 1.12 atm