Under isothermal condition,a gas at 300 ; K e | vedclass

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

Question

(A) The work done during expansion against a constant external pressure is given by the formula:$W = -P_{ext} 	imes \Delta V$Given:$P_{ext} = 2 \; ba

Vedclass · Accepted Answer

$-30 \; J$

Vedclass · Answer

(A) The work done during expansion against a constant external pressure is given by the formula:$W = -P_{ext} 	imes \Delta V$Given:$P_{ext} = 2 \; bar$$V_{1} = 0.1 \; L$$V_{2} = 0.25 \; L$Change in volume:$\Delta V = V_{2} - V_{1} = 0.25 \; L - 0.1 \; L = 0.15 \; L$Calculating work done:$W = -2 \; bar 	imes 0.15 \; L = -0.30 \; bar \cdot L$Since $1 \; L \cdot bar = 100 \; J$:$W = -0.30 	imes 100 \; J = -30 \; J$The work done by the gas is $-30 \; J$.

Under isothermal condition,a gas at $300 \; K$ expands from $0.1 \; L$ to $0.25 \; L$ against a constant external pressure of $2 \; bar$. The work done by the gas is .... [Given that $1 \; L \; bar = 100 \; J$]

Similar Questions

Which law of thermodynamics provides the definition of temperature?

In thermodynamics,the $P-V$ work done is given by $w = -\int P_{ext} dV$. For a system undergoing a particular process,the work done is $w = -\int \left(\frac{RT}{V - b} - \frac{a}{V^2}\right) dV$. This equation is applicable to a:

For which of the following reactions is $\Delta H$ approximately equal to $\Delta E$?

At $27\,^{\circ}C$,$1\, mole$ of an ideal gas expands reversibly and isothermally from $2\, atm$ to $1\, atm$. Then $\Delta H$ will be......$kJ$.

The difference between $C_p$ and $C_v$ can be derived using the empirical relation $H = U + PV$. Calculate the difference between $C_p$ and $C_v$ for $10$ moles of an ideal gas.

Vedclass Test Series

Exam Paper Generator

Online Exam Module