1. What is Reduced Temperature?

Definition: Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is a dimensionless quantity.

Purpose: It helps in the study of real gases and their behavior under different conditions using the principle of corresponding states.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T_r \) — Reduced Temperature (dimensionless)
• \( T \) — Actual Temperature (Kelvin)
• \( T_c \) — Critical Temperature (Kelvin)

Explanation: The actual temperature is divided by the critical temperature to obtain the reduced temperature.

3. Importance of Reduced Temperature

Details: Reduced temperature is crucial in thermodynamics for predicting the behavior of real gases, especially when applying the principle of corresponding states.

4. Using the Calculator

Tips: Enter the actual temperature and critical temperature in Kelvin. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is critical temperature?
A: Critical temperature is the highest temperature at which the substance can exist as a liquid. At this temperature, phase boundaries vanish.

Q2: Why is reduced temperature dimensionless?
A: It's a ratio of two temperatures (both in Kelvin), so the units cancel out.

Q3: What does a reduced temperature value indicate?
A: Values < 1 indicate subcritical conditions, = 1 is critical point, and > 1 is supercritical conditions.

Q4: Where can I find critical temperature values?
A: Critical temperatures are tabulated in thermodynamic property tables for various substances.

Q5: Can I use Celsius instead of Kelvin?
A: No, you must use Kelvin as this is an absolute temperature scale required for thermodynamic calculations.