SCIENCE
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A reaction that releases energy in the form of heat
|
|
|
the process of burning something
|
|
|
conditions of 0.00
|
|
|
the study of energy changes that occur during chemical reactions and changes in state
|
Detailed explanation-1: -In the past, the International Union of Pure and Applied Chemistry (IUPAC) defined STP as the following: Temperature: 0 degrees Celsius (273.15 degrees Kelvin or 32 degrees Fahrenheit) Pressure: 1 atm (101.325 kilopascal or 760 Torr).
Detailed explanation-2: -Until 1982, STP was defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 1 atm (101.325 kPa). Since 1982, STP has been defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).
Detailed explanation-3: -Standard temperature and pressure (STP) Standard temperature is equal to 0 °C, which is 273.15 K. Standard Pressure is 1 Atm, or 760 mmHg or torr.
Detailed explanation-4: -The International Union of Pure and Applied Chemistry (IUPAC) used to define STP as 0 ᵒC (273.15 K, or 32 ᵒF) and 1 atm (101.325 kPa = 760 Torr) (134).
Detailed explanation-5: -NIST uses a temperature of 20 °C (293.15 K, 68 °F) and an absolute pressure of 1 atm (14.696 psi, 101.325 kPa). This standard is also called normal temperature and pressure (abbreviated as NTP).