Problem: The vapor pressure of ammonia at several different temperatures is shown below. Temperature (K) Pressure (torr)20065.3210134.3220255.7230456.0235597.0Determine the normal boiling point of ammonia.

🤓 Based on our data, we think this question is relevant for Professor Nguyen's class at IVC.

We’re being asked to determine the normal boiling point of ammonia. We’re given the vapor pressure at different temperatures.

For this problem, we can use the Clausius-Clapeyron Equation:

$\ln \frac{P_{2}}{P_{1}} = - \frac{{ΔH}_{vap}}{R} [\frac{1}{T_{2}} - \frac{1}{T_{1}}]$

where:

P₁ = vapor pressure at T₁

P₂ = vapor pressure at T₂

ΔH_vap = heat of vaporization (in J/mol)

R = gas constant (8.314 J/mol•K)

T₁ and T₂ = temperature (in K).

The vapor pressure of ammonia at several different temperatures is shown below.

Determine the normal boiling point of ammonia.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Clausius-Clapeyron Equation concept. You can view video lessons to learn Clausius-Clapeyron Equation. Or if you need more Clausius-Clapeyron Equation practice, you can also practice Clausius-Clapeyron Equation practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Nguyen's class at IVC.