Energy can be transferred from a system to th | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Work done by the system on the surroundings is given by the expression $w = -P_{ext} \Delta V$.
For the system to perform work on the surrounding

Vedclass · Accepted Answer

Pressure of system $>$ External pressure

Vedclass · Answer

(A) Work done by the system on the surroundings is given by the expression $w = -P_{ext} \Delta V$.
For the system to perform work on the surroundings (expansion),the volume must increase $(\Delta V > 0)$.
This expansion occurs when the internal pressure of the system is greater than the external pressure $(P_{sys} > P_{ext})$.
Therefore,energy is transferred as work from the system to the surroundings when the system pressure is greater than the atmospheric (external) pressure.

Energy can be transferred from a system to the surroundings as work if $.....$

Similar Questions

It is a general principle that the less energy a system contains,it is:

Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures $T_1$ and $T_2$ $(T_1 < T_2)$. The correct graphical depiction of the dependence of work done $(|w|)$ on the final volume $(\ln V)$ is:

If in a container neither mass nor heat exchange occurs,then it constitutes a

Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?

If a system neither gains nor loses heat during its transformation from one state to another,such a process is called ......

Vedclass Test Series

Exam Paper Generator

Online Exam Module