Calculate the work done in joule if 1 mole o | vedclass

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Question

$(A)$ The formula for work done in an irreversible process against constant external pressure is given by $W = -P_{ext} 	imes \Delta V$. Here, $P_{ex

Vedclass · Accepted Answer

$3300$

Vedclass · Answer

$(A)$ The formula for work done in an irreversible process against constant external pressure is given by $W = -P_{ext} 	imes \Delta V$. Here, $P_{ext} = 3 \ bar = 3 	imes 10^5 \ Pa$. $\Delta V = V_f - V_i = 13 \ dm^3 - 24 \ dm^3 = -11 \ dm^3 = -11 	imes 10^{-3} \ m^3$. Substituting the values: $W = -(3 	imes 10^5 \ Pa) 	imes (-11 	imes 10^{-3} \ m^3)$. $W = 3300 \ J$. Since the gas is compressed, work is done on the system, hence the value is positive.

Calculate the work done in joule if $1 \ mole$ of an ideal gas is compressed from volume $24 \ dm^3$ to $13 \ dm^3$ at a constant external pressure of $3 \ bar$. (in $J$)

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