Answered

Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Hikers climbing mount everest discovered it took much longer to cook a boiled egg than it does at sea level, because the boiling water is not as hot. The ∆h(vap) of water is 40. 7 kj/mol. Atmospheric pressure at sea level is 760 torr. R = 8. 314 ×10⁻³ kj/mol･k. Calculate the temperature of boiling water (in °c) at an atmospheric pressure of 375 torr.

Sagot :

The temperature of Boiling Water in °c is;

T₁ = 121.22 °c

Use of Clausius Clapeyron Equation

We are given;

Initial atmospheric Pressure; P₁ = 375 torr

∆h(vap) of water= 40. 7 kj/mol = 40700 J/mol

Final atmospheric pressure; P₂ = 760 torr

R = 8.314 10⁻³ kj/mol.k = 8.314 j/mol.k

Using Clausius Clapeyron Equation, we have;

In(P₂/P₁) = (-∆h/R) * (1/T₂ - 1/T₁)

where T₂ = 373.15 K (boiling point)

Thus;

In(760/375) = -(40700/8.314) * (1/373.15 - 1/T₁)

0.70639 = -4895.357 * (0.00268 - 1/T₁)

(0.00268 - 1/T₁) = -0.70639/4895.357

0.0268 - 1/T₁ = -0.0001443

1/T₁ = 0.00268 - 0.0001443

T₁ = 1/0.0025357

T₁ = 394.37 K

in °c gives; T₁ = 121.22 °c

Read more about the use of Clausius-Clapeyron Equation at; https://brainly.com/question/21504082

We appreciate your time. Please come back anytime for the latest information and answers to your questions. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.