The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is(are) correct?

Question

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is(are) correct? (A) T1=T2 (B) T3>T1 (C) w text isothermal >w text adiabatic  (D) Δ U text isothermal >Δ U text adiabatic

Tardigrade Admin · Accepted Answer

For isothermal process T1=T2. Work done in isothermal process is less than adiabatic process. In case of isothermal process, the temperature remains constant so there is no change in the internal energy, whereas in case of adiabatic process expansion occurs through internal energy.

Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is(are) correct?

$T_{1} = T_{2}$

$T_{3} > T_{1}$

$w_{isothermal} > w_{adiabatic}$

$Δ U_{isothermal} > Δ U_{adiabatic}$

For isothermal process $T_{1} = T_{2}$ . Work done in isothermal process is less than adiabatic process. In case of isothermal process, the temperature remains constant so there is no change in the internal energy, whereas in case of adiabatic process expansion occurs through internal energy.

Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is(are) correct?

T1​=T2​

T3​>T1​

wisothermal ​>wadiabatic ​

ΔUisothermal ​>ΔUadiabatic ​

For isothermal process T1​=T2​. Work done in isothermal process is less than adiabatic process. In case of isothermal process, the temperature remains constant so there is no change in the internal energy, whereas in case of adiabatic process expansion occurs through internal energy.

$T_{1} = T_{2}$

$T_{3} > T_{1}$

$w_{isothermal} > w_{adiabatic}$

$Δ U_{isothermal} > Δ U_{adiabatic}$

For isothermal process $T_{1} = T_{2}$ . Work done in isothermal process is less than adiabatic process. In case of isothermal process, the temperature remains constant so there is no change in the internal energy, whereas in case of adiabatic process expansion occurs through internal energy.