How many times has the gas density decreased if the gas pressure during the isothermal
| September 7, 2021 | education
How many times has the gas density decreased if the gas pressure during the isothermal process decreased by 20% at a constant gas mass.
To calculate the change in the density of the specified gas in the isothermal process, we use the ratio: Pc / Pn = (ρk * R * T / M) / (ρn * R * T / M) = ρk / ρn, from where we express: ρk = ρn * Pc / Pн.
Ratio of variables: Pк (steady pressure) = 0.8Рн (initial pressure).
Calculation: ρc = ρn * Pc / Pn = ρn * 0.8Pn / Pn = 0.8ρn.
Answer: The density of this gas has decreased by 20%.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
