If a refrigerant/temperature chart shows a Celsius temperature of 4ﾟ, what is its equivalent in Fahrenheit?

To convert a Celsius temperature to Fahrenheit, you can use the formula:

[ F = \left( C \times \frac{9}{5} \right) + 32 ]

In this case, the Celsius temperature is 4 degrees. Plugging this value into the formula:

1. First, multiply 4 by 9/5, which is 7.2.

2. Then, add 32 to 7.2, resulting in 39.2.

Therefore, when the Celsius temperature is 4 degrees, its equivalent in Fahrenheit is 39.2 degrees Fahrenheit. This conversion is critical in various applications, especially in HVAC (heating, ventilation, and air conditioning) systems, where understanding temperature equivalents is necessary for proper equipment operation and compliance with safety standards.