Question

please answer.........

Answer 1

unit of volume = LItres
units of pressure = atmosphere
dimension of Litre = [ L³]
dimension of atmosphere = [ML-¹T-²]

multiply this = [L³] [ML-¹T-²]
=[ML²T-²]

we know , dimension of energy =[ML²T-²]

so, this is correct for saying litres -atmosphere conversion = energy

Answer 2

Litre * atm = 10⁻³ m³   * 1.013 * 10⁵ Pa
                  = 101.3 Joules

This is the conversion factor.