One atmosphere means

A. $$\frac{1}{3}$$ bar

B. 0.25 bar

C. 0.5 bar

D. $$\frac{2}{5}$$ bar

Answer: Option C

Solution(By Examveda Team)

An atmosphere is a unit of measurement of air pressure. it is approximately equal to Earth’s average atmospheric pressure at sea level. Its symbol is atm.
It is a unit of pressure defined as 101.325 Pa.
1 atmosphere = 0.5 bar