Container a holds 717 ml of an ideal gas at 2.20 atm. container b holds 124 ml of a different ideal gas at 4.20 atm. container a and container b are glass spheres connnected by a tube with a stopcock. container a is larger than container b. if the gases are allowed to mix together, what is the resulting pressure?

2.4949 atm

Explanation:

For Container A :  

Pressure = 2.20 atm

Temperature = T K

Volume = 717 mL = 0.717 L (1 mL = 0.001 L)

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

2.20 atm × 0.717 L = n × 0.0821 L.atm/K.mol × T K  

⇒n = 19.2132 / T moles

For Container B :  

Pressure = 4.20 atm

Temperature = T

Volume = 124 mL = 0.124 L (1 mL = 0.001 L)

Using ideal gas equation as:

PV=nRT

Applying the equation as:

4.20 atm × 0.124 L = n × 0.0821 L.atm/K.mol × 298 K

⇒n = 6.3435 / T moles

Total moles = 19.2132 / T moles + 6.3435 / T moles = 25.5567 /T moles

Total Volume = 717 + 124 mL  =  841 mL = 0.841 L

Temperature = T

Using ideal gas equation as:

PV=nRT

Applying the equation as:

P × 0.841 L = 25.5567 /T × 0.0821 L.atm/K.mol × T

⇒Total P = 2.4949 atm

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.

the correct answer would be b) volume versus temperature, because they are also directly proportional.