mmHg means millimetres of Mercury. You wouldn't normally say it normal conversation but if you did you would say it in full.
4.5 ATM (760 mmHg/1 ATM) = 3,420 mmHg
4.5 ATM (760 mmHg/1 ATM) = 3,420 mmHg
1.09 kPa = 8.176 mmHg
13 atmospheres = 9,880 mmHg
0.550atm = 418 mmHg
40 psi = 2,069 mmHg
253 mmhg (torr)
751.5 mmHg = 0.9888 atmospheres
mmHg x 0.001316 = atmospheres749 mmHg x 0.001316 = about 0.9855 atm
taken up; -5 mmHg
The answer is in the question itself:760 mmHg (= 760/760 ) = 1.00 atm , so1000 mmHg = 1000/760 = 1.32 atm
400 mmHg pressure can be converted to KP to be 53.33.