THERMODYNAMICS: WEEK 1 - 2 KNOWLEDGE CHECK

If body A is in thermal equilibrium with body B and separately in thermal equilibrium with body C, then bodies B and C must also be in thermal equilibrium with each other.

• TRUE

• FALSE

Energy has different forms, which include

• Heat

•  Work

• All of the mentioned

A piston-cylinder system with a cross-sectional area of 0.01 m² is initially resting on its stops. Given an external pressure of 100 kPa, determine the water pressure required to lift the piston.

• 178 kPa

• 188 kPa

• 198 kPa

• 208 kPa

Which of the following is a property of a pure substance?

• It has constant chemical composition throughout its mass

• It is a one-component system

• It may exist in one or more phases

• All of the mentioned

A saturation state is a state from which a change of phase may occur

• Without a change of pressure or temperature

• With a change of temperature only

• With a change of pressure only

In which of the following state does water exist?

• Saturated solid state

• Saturated liquid state

• Saturated vapour state

• All of the mentioned

Which of the following exists in a p-V diagram for water?

• Saturated solid line

• Saturated liquid line

• Saturated vapour line

• All of the mentioned

The triple point is a line on the p-V diagram, where all the three phases, solid, liquid and gas exist.

• TRUE

• FALSE

Phase change occurs at

• Constant pressure

• Constant temperature

• Constant pressure and temperature

The ideal gas law, expressed as PV = nRT, describes the relationship between pressure (P), volume (V), and temperature (T) for an ideal gas. Here, n represents the amount of substance, and R is the ideal gas constant. Given this law, analyze the provided P-T diagram and convert it into a corresponding V-T diagram.

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