<Ul> <Li> Until 1982 , STP was defined as a temperature of 273.15 K ( 0 ° C , 32 ° F ) and an absolute pressure of exactly 1 atm ( 1.01325 × 10 Pa ) . </Li> <Li> Since 1982 , STP is defined as a temperature of 273.15 K ( 0 ° C , 32 ° F ) and an absolute pressure of exactly 10 Pa ( 100 kPa , 1 bar ) . </Li> </Ul>
<Ul> <Li> Until 1982 , STP was defined as a temperature of 273.15 K ( 0 ° C , 32 ° F ) and an absolute pressure of exactly 1 atm ( 1.01325 × 10 Pa ) . </Li> <Li> Since 1982 , STP is defined as a temperature of 273.15 K ( 0 ° C , 32 ° F ) and an absolute pressure of exactly 10 Pa ( 100 kPa , 1 bar ) . </Li> </Ul>
at stp the pressure of a gas is
at stp the pressure of a gas is
100 kPa , 1 bar
100 kPa , 1 bar