The normal boiling point of ethanol is 78.3°C, and its molar enthalpy of vaporization is 39.3 kJ/mol. What is the vapor pressure at 30.0°C?

Question

27-12-2023
Chemistry

High School

We appreciate your visit to The normal boiling point of ethanol is 78 3 C and its molar enthalpy of vaporization is 39 3 kJ mol What is the vapor. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

The normal boiling point of ethanol is 78.3°C, and its molar enthalpy of vaporization is 39.3 kJ/mol. What is the vapor pressure at 30.0°C?

Answer :

Other Questions

Multiply: [tex]\left(x^2-5x\right)\left(2x^2+x-3\right)[/tex] A. [tex]2x^4-9x^3-8x^2+15x[/tex] B. [tex]2x^4+9x^3-8x^2+15x[/tex] C. [tex]4x^4+9x^3-8x^2+15x[/tex] D. [tex]2x^4-9x^3-9x^2-15x[/tex]

**A. Preparation of Bacterial Culture** 1. Streak glycerol stock of *Agrobacterium tumefaciens*

What is the force required for a hermit crab to accelerate his

Tie plates are used for what purpose? 1) To connect two or

1. Suppose the total U.S. primary energy consumption was approximately 100.2 quads

Study the editorial cartoon by John Branch. EVERYONE SHOULD STAY INSIDE TO

Factor out the greatest common factor: [tex]\[ 12x^3y^3 + 20x^2y^2 = 4x^2y^2

When towing a trailer on a public road, what is illegal to

2. How many cups of white paint should Elena mix with 12

What is the Sharpe measure for the S&P 500 over the last

logan6344 logan6344 · Answer 1 · 2025-05-20T18:31:20-04:00

Final answer:

The Clausius-Clapeyron equation can be used to estimate the vapor pressure of ethanol at a given temperature using the substance's normal boiling point and molar enthalpy of vaporization, alongside known vapor pressures at different temperatures.

Explanation:

To estimate the vapor pressure of a substance at a given temperature when the normal boiling point and the molar enthalpy of vaporization are known, we can use the Clausius-Clapeyron equation. This equation relates the temperature, vapor pressure, and heat of vaporization of a liquid. While we don't have enough information to directly calculate the vapor pressure of ethanol at 30.0°C in the original question, we can use the provided data to estimate the enthalpy of vaporization for ethanol using the temperatures and vapor pressures given at 20.0°C and 63.5°C. This calculation would typically involve taking the natural logarithm of the ratio of the two vapor pressures and dividing by the difference in the reciprocals of the two temperatures (in Kelvin), then multiplying by the universal gas constant (R).