1. The S. I. unit of heat is –
- Joule
- Calorie
- Kelvin
- J/kg
[su_spoiler title=”View Answer ” style=”fancy”]Joule[/su_spoiler]
2. The S. I. unit of temperature is –
- Joule
- Fahrenheit
- Kelvin
- Calorie
[su_spoiler title=”View Answer ” style=”fancy”]Kelvin[/su_spoiler]
3. Ideal gas equation –
- PV=R/T
- PV=T/R
- PV=μRT
- PT=RV
[su_spoiler title=”View Answer ” style=”fancy”]PV=μRT[/su_spoiler]
4. Value of universal gas constant (R) is –
- 8.31 J mol⁻¹K⁻¹
- 8.0 J mol⁻¹K⁻¹
- 6.67 J mol⁻¹K⁻¹
- 3.45 J mol⁻¹K⁻¹
[su_spoiler title=”View Answer ” style=”fancy”]8.31 J mol⁻¹K⁻¹[/su_spoiler]
5. Absolute zero temperature is –
- 0°C
- 273.15°C
- – 273.15°C
- 100°C
[su_spoiler title=”View Answer ” style=”fancy”]- 273.15°C[/su_spoiler]
6. Absolute zero temperature on the Fahrenheit scale is-
- – 32°(3)
- – 460°
- -212°
- -273°
[su_spoiler title=”View Answer ” style=”fancy”]- 460°[/su_spoiler]
7. The normal temperature of the human body is-
- 98.6°F or 37°C
- 212°F or 100°C
- 104°F or 40°C
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]98.6°F or 37°C[/su_spoiler]
8. The S. I. unit of specific heat capacity is-
- J kg⁻¹k⁻¹
- J mol⁻¹k⁻¹
- J kg⁻¹
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]J kg⁻¹k⁻¹[/su_spoiler]
9. Coefficient of linear expansion ‘a’ and coefficient of volume expansion “y’ of a solid are related as-
- Y= 3a
- Y= 2a
- A=3y
- A=y
[su_spoiler title=”View Answer ” style=”fancy”]
- Y= 3a
[/su_spoiler]
10. Coefficient of area expansion (2) and coefficient of linear expansion(1) of material are related as
- B= 3a
- 3B = 2y
- B=2a
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]B=2a[/su_spoiler]
11. The temperature which has the same numerical value on Celsius and Fahrenheit scale is-
- 273°
- – 40°
- – 273°
- 40°
[su_spoiler title=”View Answer ” style=”fancy”]- 40°[/su_spoiler]
12. The S. I. unit of molar specific heat is-
- J kg1⁻¹k⁻¹
- J mol⁻¹k⁻¹
- J kg⁻¹
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]J mol⁻¹k⁻¹[/su_spoiler]
13. The S. I. unit of latent heat is-
- J kg⁻¹k⁻¹
- J mol⁻¹-k⁻¹
- J kg⁻¹
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]J kg⁻¹[/su_spoiler]
14. Which of the following instrument is used for measuring heat?
- Calorimeter
- Thermometer
- Hydrometer
- Barometer
[su_spoiler title=”View Answer ” style=”fancy”]Calorimeter[/su_spoiler]
15. Cp and Cv are two specific heat capacities of gases
- Less than 1
- Greater than 1
- Equal to 1
- Same for all gasses
[su_spoiler title=”View Answer ” style=”fancy”]Greater than 1[/su_spoiler]
16. Which of the following substances has the greatest specific heat capacity- will be-
- Water
- Salt
- Iron
- Mercury
[su_spoiler title=”View Answer ” style=”fancy”]Water[/su_spoiler]
17. Molar specific heat capacity of nitrogen gas is-
- less than that of hydrogen gas
- greater than that of hydrogen gas
- same as that of hydrogen gas
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]greater than that of hydrogen gas[/su_spoiler]
18. The change of state from solid to liquid is called-
- melting
- vaporization
- fusion
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]melting[/su_spoiler]
19. The change of state from liquid to solid is called-
- melting
- vaporization
- regelation
- fusion
[su_spoiler title=”View Answer ” style=”fancy”]fusion[/su_spoiler]
20. At the time of melting the temperature of the body-
- remains constant
- increases
- decreases
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]remains constant[/su_spoiler]
