If a gas, at constant temperature and pressure expands, then its :
1) Entropy increases and then decreases
2) Internal energy increases
3) Internal energy remains same
4) Internal energy decreases
Share
If a gas, at constant temperature and pressure expands, then its :
1) Entropy increases and then decreases
2) Internal energy increases
3) Internal energy remains same
4) Internal energy decreases
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
If a gas, at constant temperature and pressure expands, then its :
Verified answer
[tex]\huge\mathcal{\fcolorbox{yellow} {beige} {\orange{ᏗᏁᏕᏇᏋᏒ}}}[/tex]
──────────────────────────────────────────
──────────────────────────────────────────
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
[tex]{ \orange{ \boxed{ \tt \: CORRECT \: OPTION:}}}[/tex]
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
If a gas is expanding at constant temperature and pressure, then its
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
[tex]{ \orange{ \boxed{ \tt \: EXPLANATION:}}}[/tex]
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
When a gas expands at constant temperature and pressure, it absorbs heat from the surroundings to perform the work of expansion. This results in an increase in the entropy of the gas due to the increase in the number of energetically accessible microstates. However, the internal energy of the gas remains the same since the temperature is constant. This implies that the average kinetic energy of the gas molecules remains unchanged. Hence, option 3) "Internal energy remains the same" is the correct choice.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
──────────────────────────────────────────
──────────────────────────────────────────
[tex]{ \orange{ \sf \: hope \: it \: helps \: you}}[/tex]