Applications of Thermodynamics: Work

The enthalpy changes at $298 \mathrm{K}$ in successive breaking of $\mathrm{O}-\mathrm{H}$ bonds of water are-
${\mathrm{H}}_2\mathrm{O} \to \mathrm{H}\left(\mathrm{g}\right)+\mathrm{OH}\left(\mathrm{g}\right); ∆\mathrm{H}= 498 \mathrm{kJ} {\mathrm{mol}}^{-1}$
$\mathrm{OH} \to \mathrm{H}\left(\mathrm{g}\right)+\mathrm{O}\left(\mathrm{g}\right); ∆ \mathrm{H}= 428 \mathrm{kJ} {\mathrm{mol}}^{-1}$
The bond enthalpy of $\mathrm{O}-\mathrm{H}$ bond is
 

Why work done in a free expansion of ideal gas is zero?

Explain free expansion of an ideal gas.

Work done during free expansion of an ideal gas is:

Which energy is a part of mechanical energy?

What is the difference between kinetic and mechanical energy?

What is mechanical work?

The work done during the expansion of a gas from $4\mathrm{ }\mathrm{d}{\mathrm{m}}^3$ to $6\mathrm{ }\mathrm{d}{\mathrm{m}}^3$ against a constant external pressure of $3\mathrm{ }\mathrm{a}\mathrm{t}\mathrm{m}$ is $(1\mathrm{ }\mathrm{L}\mathrm{ }\mathrm{a}\mathrm{t}\mathrm{m}=101.32\mathrm{ }\mathrm{J})$

$2.8 \mathrm{x} {10}^{-2} \mathrm{Kg}$ of nitrogen is expanded isothermally and reversibly at $300\mathrm{K}$ from $15.15 \mathrm{x} {10}^5 {\mathrm{Nm}}^{-2}$ when the work done is found to be$-17.33 \mathrm{kJ}$. Find the final pressure.

Three moles of an ideal gas are compressed isothermally and reversibly to a volume of $2 \mathrm{L}$. The work done is $2.983 \mathrm{kJ}$ at $22°\mathrm{C}$. Calculate the initial volume of the gas.

Calculate the maximum work when$24 \mathrm{g}$ of oxygen are expanded isothermally and reversibly from a pressure of $1.6\times {10}^5 \mathrm{Pa}$ to $100 \mathrm{kPa}$ at$298 \mathrm{K}$.

Derive the expression for maximum work.

A free expansion of a gas results into no work. Explain.
 

What is the amount of work done during free expansion? (write answer in words).

What was the primary form of rent that peasants had to pay to their lords?

What is the adjustment entry for recording depreciation on machinery?

When an asset is disposed of at a profit, which account is debited?

Which of the following statements is true about long run costs?