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Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 4 (60 MCQs)

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1. What is erroneous about the process terrminologies from the choices?
2. How much heat is needed to form 40.0 L of NO$_{2}$ from its elements at STP?, V$_{m}$=22.4LN$_{2}$+ 2O$_{2}$ $\rightarrow$ 2NO$_{2}$$\Delta$H = +67kJ
3. ..... means that energy cannot be destroyed
4. Which is NOT an example of an open system?
5. The value of process index is one for which of the following process?
6. Variables independent of the size of the system and the same at any location within the system.
7. In isochoric process work done is
8. Which variable is not needed to solve for heat energy (Q)?
9. An infrared camera is capable of viewing .....
10. Which of the following is a real-world application of the first law of thermodynamics?
11. Which of the following would have the highest entropy?
12. Spontaneous reactions may be extremely slow.
13. Which of the following is correct in terms of increasing work done for the same initial and final state?
14. Which process is accompanied by a decrease in entropy?
15. Aarav is studying the principles of thermodynamics in his physics class. According to the Kelvin Planck statement, a heat engine must transfer ..... with two thermal energy reservoirs.
16. Identify the incorrect statement among the following.-A:Gibbs Free Energy change is negative for spontaneous reactions at constant temperature and pressure.-B:It's a thermodynamic potential that measures the maximum reversible work a thermodynamic system can perform.-C:The increase in Gibbs Free Energy of a system is directly proportional to the increase in its entropy.
17. If Cp= 10 j/k . And the temperature is raised from 100 k to 400 k. What will be the change in internal energy?( Approximately
18. The enthalpy change per degree rise of temperature
19. A pure substance is one that has even though thereis a change of phase
20. Two bodies are said to be in thermal equilibrium when .....
21. The amount of heat required to change the temperature of one unit of mass by 1$^\circ$C.
22. Which of the following occurs without a change in the internal energy?
23. For endothermic reaction enthalpy change is
24. The ..... law of thermodynamics states the entropy of a system not in thermal equilibrium increases.
25. Which law of thermodynamics states that absolute zero cannot be reached?
26. UFP in Celsius scale is
27. The value of universal gas constant is .....
28. A 1.00-kg block of ice at 0$^\circ$C is melted and converted to water at 0$^\circ$C. What is its change in entropy?
29. Which of the following situations demonstrates high entropy?
30. What does "q" mean?
31. Whenever a system undergoes either a change in state or an energy or mass transfer at a steady state, it is said to undergo
32. First law of thermodynamics furnishes the relationship between
33. In the polytropic process pvn = Constant if n = 1 the process is termed as
34. When the temperature of matter increases the particles .....
35. The energy stored within a body or substance by the virtue of the activity and configuration of its molecules and of the vibration of atoms within the molecules
36. According to first law of thermodynamics:
37. What is the significance of the Third Law of Thermodynamics?
38. According to Joule-Kelvin effect which of the following suffer slight rise in temperature
39. The efficiency of carnot heat engine
40. The law of conservation of energy; total amount of energy in the universe is constant and be neither created or destroyed.
41. The entropy of the universe is always increasing. Which law does this refer to?
42. Which of the following is a correct statement about the Zeroth Law of Thermodynamics?
43. A) A process in which temperature remain constant is called
44. NASA developed a reflective foil barrier to help shield spacecraft from heat transfer in space. These reflective barriers are now used in homes to prevent heat transfer by the same method. What method of heat transfer is being prevented by the reflective barrier?
45. Avni and Siya are conducting an experiment with two reversible heat engines working between the same source and sink. For a given heat input, they will have equal .....
46. The First Law of Thermodynamics describes the conservation of energy
47. A bathtub and a coffee cup both contain water at 90$^\circ$C. Which of the following is true?
48. Symbol that indicates that energy is released.
49. When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called
50. Which type of substance has the least entropy?
51. Calculate the number of kJ required for the reaction shown below, if you begin with 45.0 grams of water (H2O), and the $\Delta$Hrxn = +571.6 kJ. 2 H2O(l) $\rightarrow$ 2 H2(g) + O2(g)
52. Branch of science that deals with the transformation energy to another
53. What is entropy?
54. When an ideal gas expands at constant pressure, the change in the internal energy must be positive.
55. Which of the following is an intensive property?
56. Gas within a piston is compressed from a volume of1.35x10$^{-2}$ m$^{3}$ to a volume of 12.5x10$^{-3}$ m$^{3}$. What quantity of work is done if the compression occurs under a constant pressure of 4.0x10$^{5}$ Pa?
57. Warm air currents move upward from the earth. This is an example of
58. What is the difference between adiabatic process and isentropic process?
59. In an isothermal process, the internal energy of the system
60. Thermometer is based on
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