where to use temprature 273 or 293 k in ntp
Hello,
NTP stands for normal temperature and pressure, so at NTP we have a pressure of 1 atm and temperature of 293 K or 20 deg Celsius.
While at STP (standard temperature and pressure), pressure is 1 bar or 0.987 atm and temperature is 273 K or 0 deg Celsius.
Hope it helps.. Best of luck!!!