<Tr> <Th> atmosphere: </Th> <Td> 9.869 × 10 atm </Td> </Tr> <Tr> <Th> bar: </Th> <Td> 10 bar </Td> </Tr> <P> The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength . It is defined as one newton per square metre . It is named after the French polymath Blaise Pascal . </P> <P> Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa) which is equal to one millibar, and the kilopascal (1 kPa = 1000 Pa) which is equal to one centibar . </P>

Si unit of pressure is pascal which is equal to