| 1 |
Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be |
- A. 3/4
- B. 9/16
- C. 4/3
- D. 10/9
|
| 2 |
Mercury is used as a thermometric substance because |
- A. It is opaque
- B. Does not stick to glass
- C. Has low specific heat
- D. All of these
|
| 3 |
The work done is isochoric process is. |
- A. Constant
- B. Variable
- C. Zero
- D. Depend upon condition
|
| 4 |
The temperature scale which is independent of nature of substance is. |
- A. Thermodynamic scale
- B. Centigrade scale
- C. Fahrenheit scale
- D. Regnault scale
|
| 5 |
A cycle of petrol engine undergoes |
- A. Two process
- B. Three process
- C. Four process
- D. single process
|
| 6 |
According to first law of thermodynamics the quantity which is conserved. |
- A. Force
- B. Momentum
- C. Energy
- D. Power
|
| 7 |
The measure of hotness or coldness of a substance is. |
- A. Temperature
- B. Heat
- C. Internal energy
- D. Energy
|
| 8 |
A device based upon the thermodynamics property of matter is called. |
- A. Calorimeter
- B. Heat engine
- C. thermometer
- D. Voltmeter
|
| 9 |
The molecules of an ideal gas exert |
- A. Force on each other
- B. No force on each other
- C. Large force on each other
- D. Pressure on each other
|
| 10 |
An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at. |
- A. 0 K
- B. 0 <sup>o</sup>C
- C. 100 K
- D. 100 <sup>o</sup>C
|