What is the value of R in the ideal gas law?

O A. 0.0821 L-atm/mol-K

O B. - 0.0821 L-atm/mol-K

O C. 273 L'atm/mol-K

O D.-273 L'atm/mol-K

A. 0.0821 L-atm / mol-K

Explanation:

Ideal gas law is given as,

PV = nRT

R is termed as Universal gas constant.

Under standard conditions of Temperature (273 K), Volume (22.4 L), pressure (1 atm) and for number of moles (n=1), we will get R as,

R = 1 atm * 22.4 L / 1 mol * 273 K

= 0.0821 L-atm / mol-K