Thermodynamics Quiz

In an open system, both ___ and ___ can cross the system boundary.

• Heat and temperature

• Energy and matter

• Volume and pressure

• Force and time

The surroundings in thermodynamics refer to:

• The part of the system under study

• The measuring instruments

• Everything external to the system

• Only the heat source

An isolated system allows:

• Only energy to cross boundaries

• Only mass to cross boundaries

• Both energy and mass to cross

• Neither energy nor mass to cross

The first law of thermodynamics for a closed system is:

• Q = W

• Q = ΔU + W

• W = ΔU

• Q = ΔS

The maximum efficiency of a heat engine is determined by:

• First Law

• Second Law

• Zeroth Law

• Third Law

The First Law of Thermodynamics is also known as:

• Law of Entropy

• Law of Energy Conservation

• Law of Heat Transfer

• Law of Temperature

According to the First Law, the change in internal energy is equal to:

• Heat supplied - Work done

• Heat supplied + Work done

• Work done only

• Heat lost only

A refrigerator works on which law of thermodynamics?

• First

• Second

• Third

• Zeroth

Energy transferred due to temperature difference is:

• Work

• Power

• Entropy

• Heat

A system where neither mass nor energy is exchanged is called:

• Open system

• Closed system

• Isolated system

• Reversible system