Chap 10 - Thermodynamics

A thermodynamic process which takes place at a constant pressure is called an

• isobaric process.

• isothermal process.

• isochoric process.

• adiabatic process.

Pressure versus volume curves are shown for a certain gas at a constant temperature as T1 and T2. What is the relation between T1 and T2?

• T1 = T2

• T1 > T2

• $T_2\ne T_1$

• T1 < T2

The process in which work is done at a constant pressure is shown in the given picture.

If the volume of the system increases then the work done by the system will

• increase.

• decrease.

• remain the same.

• be zero.

The specific heat capacity of water is __________ J/kgC

• 2100

• 6750

• 3360

• 4200

The formula for pressure exerted by a gas on the walls of a container is

• $\frac{1}{3}m\overline{v}^2$

• $\frac{1}{3}mN_o\overline{v}^2$

• $\frac{1}{3}mN_o\overline{v}^{ }$

• $\frac{2}{3}mN_o\overline{v}^2$

Change in internal energy is due to the

• molecular PE

• molecular PE and KE

• molecular rotational KE

• molecular translational KE

Molar specific heat at constant volume is the application of

• isobaric process.

• isochoric process.

• adiabatic process.

• isothermal process.

The equation for adiabatic process of 1st law of thermodynamics is

• $\Delta Q=\Delta U+\Delta w$

• $\Delta U=-\Delta w$

• $\Delta Q=\Delta w$

• $\Delta Q=\Delta u$

According to 2nd law of thermodynamics, heat can be converted into mechanical work if the system contains

• two heat reservoirs at different temperatures.

• engine and heat reservoir at zero temperature.

• engine and heat reservoir at the same temperature.

• engine and two heat reservoirs at different temperatures.

• A

• B

• C

• D