1. . The total kinetic energy of all the molecules of a body is called:
(A) Temperature
(B) Thermal energy
(C) Heat
(D) Calorie
2. . The average kinetic energy of all the molecules of a body is called:
(A) Temperature
(B) Heat
(C) Momentum
(D) Internal energy
3. . The unit of heat is:
(A) Kelvin
(B) Centigrade
(C) Calorie
(D) Fahrenheit
4. . One Calorie is equal to:
(A) 252 B.T.U
(B) 252 Joule
(C) 746 Watt
(D) 4.18 Joule
5. . The amount of heat required to raise the temperature of a substance through one-degree centigrade is called its:
(A) Heat of fusion
(B) Specific Heat
(C) Latent Heat
(D) Heat of vaporization
6. . Specific heat of water is equal to:
(A) 1000 J/kg
(B) 4200 J/kg
(C) 4.2 J/kg
(D) 420 J/kg
7. . The S.I unit of temperature is:
(A) Fahrenheit
(B) Centigrade
(C) Kelvin
(D) Calorie
8. . 0 K is equal to:
(A) 273 °C
(B) 273 °F
(C) 273 °C
(D) 273 °F
9. . According to Boyle’s law:
(A) V ∝ T
(B) V × P = constant
(C) V ∝ P
(D) V/P = constant
10. . According to Charles’ law:
(A) V ∝ P
(B) V ∝ T
(C) V × T = constant
(D) V/P = constant
11. . The relationship between the coefficient of linear expansion α and coefficient of volumetric expansion γ is:
(A) γ = α
(B) α = 3γ
(C) γ = 2α
(D) γ = 3α
12. . The instrument used to measure humidity is called:
(A) Barometer
(B) Hygrometer
(C) Thermometer
(D) Hydrometer