Isothermic, Isobaric, and Adiabatic Processes

Practice Questions

Physical Chemistry › Isothermic, Isobaric, and Adiabatic Processes

Questions

A sample of an ideal gas is initially at a volume of $3.5 \textup{ L}$ . The gas expands to a volume of $7.0 \textup{ m}^3$ when $2.0 \textup{ J}$ of heat is applied to the system against a constant external pressure of $0.50 \textup{ Pa}$ . Calculate the change in internal energy for this gas.

$1.0\textup{ Pa}\cdot \textup{m}^{3}=1.0 \textup{ J}$

At $270 \textup{ K}$ , a $0.1446 \textup{ mol}$ sample of argon gas expands reversibly from a confined space of $2.1 \textup{ m}^3$ to $3.4 \textup{ m}^3$ . Calculate the work done.

Which of the following processes are considered an isothermic reaction?

I. Condensation

II. Evaporation

III. Sublimation

Melting of a solid to a liquid is an example of what type of reaction?

At $300\textup{ K}$ , a $2.237 \textup{ g}$ sample of argon gas (atomic mass= $39.95\ \frac{\textup{g}}{mol}$ ) expands reversibly from a confined space of $7.35 \textup{ m}^3$ to $11.90 \textup{ m}^3$ . Calculate the work done.

Which of the following is not true for an isothermal process?

A sample of an ideal gas is initially at a volume of $2.4\textup{ m}^3$ . The gas expands to a volume of $5.9 \textup{ m}^3$ when $0.9 \textup{ J}$ of heat is applied to the system against a constant external pressure of $0.43 \textup{ Pa}$ . Calculate the change in internal energy for this gas. $1.0 \textup{ Pa}\cdot \textup{m}^{3}=1.0 \textup{ J}$

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