Question

A tank containing 5.00 L of nitrogen at 75.0 atm pressure and 28.0 C is left standing in sunlight. Its temperature rises to 50.0C. What is the pressure at this higher temperature?

Answer 1

80.5 atm

Step-by-step explanation:

First of all, we convert 28.0 °C and 50.0 °C into K:

• 28.0 + 273.16 = 301.16 K

• 50.0 + 273.16 = 323.16 K

To answer this problem we'll use Gay-Lussac's Law, which states that:

• T₁*P₂=T₂*P₁

In this case:

• T₁ = 301.16 K

• P₂ = ?

• T₂ = 323.16 K

• P₁ = 75.0 atm

We put the data:

• 301.16 K * P₂ = 323.16 K * 75.0 atm

And solve for P₂:

• P₂ = 80.5 atm

Thus, the correct answer is 80.5 atm.