What is NTP?
NTP (Normal Temperature and Pressure) is a set of standard conditions used to define the physical properties of a substance, particularly in the field of thermodynamics.
These standard conditions are typically set as a temperature of 20 degrees Celsius (68 degrees Fahrenheit) and a pressure of 1 atmosphere (101.325 kPa), which is roughly equivalent to the average temperature and pressure of the Earth’s atmosphere at sea level.
The use of NTP allows for the direct comparison of data from different experiments, as well as the prediction of the behaviour of a substance under different conditions.
In thermodynamics, the properties of a substance are often described in terms of its internal energy, enthalpy, and entropy, and these properties can be measured at NTP to provide a baseline for comparison.
When measuring the properties of gases, the NTP conditions are often used to measure the volume of the gas at standard temperature and pressure (STP) which is defined as 0 degree Celsius and 1 atm.
It is important to note that NTP is standard, and not all experiments are conducted at NTP, but it is a way to have a common point of reference.
Difference between STP and NTP
NTP and STP are two terms which are widely used in physics and chemistry to explain the various physical and chemical properties of liquids and gases. Let’s learn about these and their difference in detail.
Table of Content
- What is STP?
- Uses Of STP
- Fluid Mechanics
- Thermodynamics
- Acoustics
- Astrophysics
- What is NTP?
- Uses Of NTP
- Calibration Of Instruments
- Comparison of Data
- Prediction of Behavior
- Thermodynamic Calculations
- Difference between STP and NTP