4. HEAT AND THERMODYNAMICS

Question 1

__________ codified the first two laws of thermodynamics and deduced that the absolute zero of temperature is -273.15°C. He was honored for this with the naming of the Kelvin temperature scale.

Answer 1

William Thompson

Question 2

Which of the following is also
called the First Law of Thermodynamics ?

Answer 2

Law of Conservation of Energy Explanation :The first law of thermodynamics is also known as the Law of Conservation of Energy. It states that energy can neither be created nor be destroyed, energy can only be transferred or changed from one form to another.

Question 3

The innovative concept of using sunshine to keep houses warm in freezing winters is called______

Answer 3

passive solar heating

Question 4

The sun heats the earth through_______

Answer 4

Radiation

Question 5

The process of transformation of a substance in a gaseous state into a liquid state due to change in pressure or temperature of the substance is called_______

Answer 5

Condensation

Question 6

______ expansion makes the Eiffel Tower taller during summers.

Answer 6

Thermal

Question 7

Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain equal numbers of molecules.

Answer 7

Avogadro’s Law

Question 8

Radiation with shortest wavelength

Answer 8

Gammna Rays
X- rays
Ultra-violet
Visible
Infrared
micro
radio

Question 9

Radiations with shortest freequency

Answer 9

radio
Infrared
micro
Visible
Ultra-violet
X- rays
Gammna Rays