List of top Chemistry Questions on Work done in Thermodynamics asked in MHT CET

Which of the following is true for entropy?

In an isothermal expansion of an ideal gas, the heat supplied to the gas is:

Find the work done by a gas that expands from \(0.2\,\text{dm}^3\) to \(0.8\,\text{dm}^3\) against a constant pressure of \(2\) bar.

For a certain reaction $\Delta H = -225$ kJ and $\Delta S = -150$ J K$^{-1}$. Find the temperature so that $\Delta G$ is zero.

Which from following is an example of an intensive property of the system?

Calculate the work done in the oxidation of one mole $HCl_{(g)}$ at 27$^\circ$C, according to reaction.
$4HCl_{(g)} + O_{2(g)} \rightarrow 2Cl_{2(g)} + 2H_2O_{(g)}$
(R = 8.314 J K$^{-1}$ mol$^{-1}$)

Calculate the constant external pressure required to expand 2 moles of an ideal gas from volume $15\text{dm}^3$ to $20\text{dm}^3$ if amount of work done is -600 J .

Calculate the work done in joule if 2 moles of an ideal gas expand isothermally from \(15.5 \text{ dm}^3\) to \(20 \text{ dm}^3\) at constant pressure 1 atm .

For a certain reaction $\Delta H = -225$ kJ and $\Delta S = -150$ J K$^{-1}$. Find the temperature so that $\Delta G$ is zero.

Which from following is an example of an intensive property of the system?

Calculate the work done in the oxidation of one mole $HCl_{(g)}$ at 27$^\circ$C, according to reaction.
$4HCl_{(g)} + O_{2(g)} \rightarrow 2Cl_{2(g)} + 2H_2O_{(g)}$
(R = 8.314 J K$^{-1}$ mol$^{-1}$)

For a certain reaction $\Delta H = -225$ kJ and $\Delta S = -150$ J K$^{-1}$. Find the temperature so that $\Delta G$ is zero.

Which from following is an example of an intensive property of the system?

Calculate the work done in the oxidation of one mole $HCl_{(g)}$ at 27$^\circ$C, according to reaction.
$4HCl_{(g)} + O_{2(g)} \rightarrow 2Cl_{2(g)} + 2H_2O_{(g)}$
(R = 8.314 J K$^{-1}$ mol$^{-1}$)

Which of the following symbols represents heat of reaction at constant pressure?

Calculate heat of formation of \(\text{SO}_2\) from following equations.
\( \text{S} + \frac{3}{2}\text{O}_2 \longrightarrow \text{SO}_3, \Delta \text{H} = -2\text{x kJ} \)
\( \text{SO}_2 + \frac{1}{2}\text{O}_2 \longrightarrow \text{SO}_3, \Delta \text{H} = -\text{y kJ} \)

One mole of a perfect gas expands isothermally and reversibly from \(10\text{dm}^3\) to \(20\text{dm}^3\) at \(300\text{ K}\) . Find \(\Delta \text{U}\), q and work done respectively in the process. \(\left( \text{R} = 8.3 \times 10^{-3} \text{ kJ K}^{-1} \text{ mol}^{-1} \right)\)

For a reaction A + B $\rightarrow$ products $\Delta\text{H}$ is $-$84.2 kJ and $\Delta\text{S}$ is $-$200 J K$^{-1}$. Calculate the highest value of temperature so that the reaction will proceed in forward direction.

Calculate the value of $\Delta G$ for following reaction at 300 K.
$H_{2}O_{(s)}\longrightarrow H_{2}O_{(l)}$
$(\Delta H=7\text{ kJ}, \Delta S=24.8\text{ J K}^{-1})$

An ideal gas expands by performing 200 J of work, during this internal energy increases by 432 J. What is enthalpy change?

Which among the following reactions exhibits $\Delta H=\Delta U$?

Calculate the PV type of work for the following reaction at 1 bar pressure. C3H6(g) + HCl(g) → C3H7Cl(g)}

Which from following thermodynamic properties is a path function?

Identify false statement regarding isothermal process from following.

If the enthalpy change for the following reaction at $300\,\text{K}$ is $+7\,\text{kJ mol}^{-1}$, find the entropy change of the surroundings.
$H_2O_{(s)} \longrightarrow H_2O_{(l)}$