Entry Test MCQ :: ThermoChemistry
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| 21. |
Most of thermodynamic parameters are |
| A. |
system |
B. |
surrounding |
| C. |
phase |
D. |
state functions |
Answer: Option D
Explanation:
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| 22. |
?H of a system can be calculated by which of following relationship |
| A. |
q=m x s x ?T |
B. |
q=?E |
| C. |
q=m x v x ?T |
D. |
q = pv |
Answer: Option A
Explanation:
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| 23. |
Change in enthalpy (H) of a system can be calculated by following relationship |
| A. |
?H=?E+P?V |
B. |
?H=?E-PV |
| C. |
?H=?E-q |
D. |
?H=?E+q |
Answer: Option A
Explanation:
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| 24. |
Which of the following is correct |
| A. |
qp>qv |
B. |
?E < ?H |
| C. |
?E>?H |
D. |
Both a & b |
Answer: Option A
Explanation:
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| 25. |
Two fundamental ways to transfer energy are |
| A. |
pressure and temperature |
B. |
pressure and volume |
| C. |
heat and work |
D. |
heat and volume |
Answer: Option C
Explanation:
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| 26. |
Which of the following processes has always ?H = -ve |
| A. |
formation of compound |
B. |
combustion |
| C. |
dissolution of ionic compound |
D. |
dilution of a solution |
Answer: Option B
Explanation:
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| 27. |
Enthalpy change can be |
| A. |
calculated by Hess law |
B. |
can be measured by calorimeter |
| C. |
both a and b |
D. |
none |
Answer: Option C
Explanation:
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| 28. |
If there is interconversion of solid and liquid states then |
| A. |
?V = 0 |
B. |
?H= ?E |
| C. |
?H > ?E |
D. |
both a & b |
Answer: Option B
Explanation:
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| 29. |
In order to determine ?hlatt of ionic compound which is correct relationship |
| A. |
?hlatt = ?Hf - ?Hx |
B. |
?hlatt = ?Hf + ?Hx |
| C. |
?hlatt = ?Ha + ?Hv |
D. |
?hlatt = ?Hf - ?hsol |
Answer: Option A
Explanation:
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| 30. |
Hess law can be applied to determine |
| A. |
?Hf |
B. |
?Hlatt |
| C. |
?Hcomb |
D. |
All of the above |
Answer: Option D
Explanation:
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