Question

A 1-L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L.

Answer 1

A 1 L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L, the final pressure of CO is 1 atm.

We have,

Initial volume, V₁ = 1 L

Final volume, V₂ = 2 L

Initial temperature, T₁ = 273 K (standard temperature)

Final temperature, T₂ = 546 K

Initial pressure, P₁ = 1 atm

Final pressure, P₂ = ?

To calculate final pressure, we will use combined gas law.

Combined gas law is given as -

                                               P₁V₁ = P₂V₂

                                                 T₁        T₂

where,

P₁ = initial pressure

P₂ = final pressure

V₁ = initial volume

V₂ = final volume

T₁ = initial temperature

T₂ = final temperature

Substituting values in the gas law equation -

1 x 1 = P₂ x 2

273       546

P₂ = 546 x 1 x 1  atm

          273 x 2

P₂ = 1 atm

Therefore, the final pressure of sample of CO at STP is 1 atm.

To learn more about volume at STP,

brainly.com/question/4129937

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