MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The specific heat at constant pressure is given by the expression ____________ |
| A. | C<sub>V</sub> = dq/dT |
| B. | C<sub>P</sub> = dq/dT |
| C. | C<sub>V</sub> = dqdt |
| D. | C<sub>P</sub> = dq/dt |
| Answer» C. C<sub>V</sub> = dqdt | |
| 2. |
If gas is expanded freely from 1 litre to 5 litres at a temperature of 60-degree centigrade what is the work done? |
| A. | Positive |
| B. | Negative |
| C. | 0 |
| D. | Infinity |
| Answer» D. Infinity | |
| 3. |
Write temperature difference in terms of heat capacity and heat energy? |
| A. | T = q/C |
| B. | T = qC |
| C. | T = C/q |
| D. | T = qm/C |
| Answer» B. T = qC | |
| 4. |
What is the difference in heat capacities at constant volume and pressure? |
| A. | Universal volume constant |
| B. | Universal gas constant |
| C. | Universal pressure constant |
| D. | Universal temperature constant |
| Answer» C. Universal pressure constant | |
| 5. |
The value of the product of a universal gas constant and the temperature difference is given by 10 kJ/mol at 1 mole and the internal energy is given by 20 KJ, what is the enthalpy of this system in KJ? |
| A. | 30 |
| B. | 10 |
| C. | 20 |
| D. | 200 |
| Answer» B. 10 | |
| 6. |
6 litres of an ideal gas expands isothermally at a temperature of 300 Kelvin up to 10 litres at a pressure of 5 atm, what is the work done? |
| A. | 30 Newton metre |
| B. | 80 Newton metre |
| C. | 50 Newton metres |
| D. | 20 Newton metre |
| Answer» E. | |
| 7. |
Expansion of gas under zero pressure is free expansion. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
When the pressure of 3 atm is exerted over a surface area of a 10-metre square, what is a force that is applied? |
| A. | 30 Newton |
| B. | 3.33 Newton |
| C. | 0.33 Newton |
| D. | 0.3 Newton |
| Answer» B. 3.33 Newton | |
| 9. |
When an ideal gas is compressed in a piston using 5 atm of pressure through a 50-metre cube of volume, what is the amount of work done? |
| A. | 10 Newton metre |
| B. | 0.1 Newton metre |
| C. | 250 Newton metre |
| D. | 55 Newton metre |
| Answer» D. 55 Newton metre | |