MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For a reaction, Kc = 3.81 × 10–3 and ΔG0 = 13.8 kJ/mol. Then what is the value of R? |
| A. | -8.314J mol–1K–1 |
| B. | 8.314J mol–1K–1 |
| C. | cannot say as the temperature is not given |
| D. | -8.314J mol–1 |
| Answer» C. cannot say as the temperature is not given | |
| 2. |
What did the Q depicted in the equation; ΔG = ΔG0 + RT lnQ? |
| A. | reaction coefficient |
| B. | reaction quotient |
| C. | equilibrium constant |
| D. | free energy |
| Answer» C. equilibrium constant | |
| 3. |
If the value of ΔG0 is -2502 J/mol and K is 2, what is the temperature of the reaction that is occurring? |
| A. | 200 k |
| B. | 101 k |
| C. | 100 k |
| D. | 300 k |
| Answer» D. 300 k | |
| 4. |
For a chemical reaction, the value of ΔG0 is -831.4 J/mol. Then what is the value of KC at 100 k? |
| A. | 1.0077 |
| B. | 1.077 |
| C. | 1.007 |
| D. | 2.7 |
| Answer» E. | |
| 5. |
In a reaction, at 300k, KC is given as 2 x 1013, then what is the value of ΔG? |
| A. | – 7.64 × 104 J |
| B. | – 7.64 × 104 J mol–1 |
| C. | – 7.64 × 10 J mol–1 |
| D. | – 7.64 × 104 mol–1 |
| Answer» C. – 7.64 × 10 J mol–1 | |