# Standard temperature and pressure (STP)

STP stands for Standard Temperature and Pressure. STP is a set of conditions for a given material, typically a gas or liquid, that specifies a temperature and pressure at which the material will exhibit certain defined physical properties. The most common set of STP conditions is a temperature of 20 degrees Celsius (68 degrees Fahrenheit) and a pressure of one atmosphere (14.7 pounds per square inch). What is the value of 1 STP? The value of 1 Standard Temperature and Pressure (STP) is 0.0°C and 1 atmosphere. What is pressure of gas at STP? The standard temperature and pressure (STP) conditions for gases are a temperature of 0 degrees Celsius and a pressure of 1 atmosphere. Under these conditions, the pressure of a gas is 1 atmosphere. What are standard conditions vs STP? STP stands for Standard Temperature and Pressure. Standard Temperature and Pressure are defined as 0 degrees Celsius and 1 atmosphere respectively. STP is a standard used to define the properties of an ideal gas.

#### What is the STP formula?

The STP formula is a standard method for calculating the required capacity of a sewagetreatment plant. It is based on the average dry weather sewage flow, the population equivalent, and the degree of treatment required. The formula is:

STP capacity (m3/d) = (A x P x N x T) / (B x C x D)

where:

A = average dry weather sewage flow (m3/d)

P = population equivalent (PE)

N = number of people served

T = degree of treatment required

B = design factor

C = conversion factor

D = effluent discharge limit

The average dry weather sewage flow is the average flow of sewage during dry weather conditions. This is typically determined by measuring the flow over a period of time during dry weather conditions.

The population equivalent is a measure of the amount of sewage generated per person. This varies depending on the type of population, with more densely populated areas generating more sewage per person.

The number of people served by the treatment plant is the actual number of people served by the plant. This may be different to the population equivalent if the plant serves a transient population, such as tourists.

The degree of treatment required is the level of treatment needed to meet the effluent discharge limits. This will vary depending on the receiving environment and the effluent discharge limits.

The design factor is What is standard pressure in atm? Standard pressure is the pressure of the atmosphere at sea level. It is also known as "normal" or "ambient" pressure. Standard pressure is 1 atmosphere (atm), or 101.3 kilopascals (kPa).