| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.HL.TZ1.12 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 12 | Adapted from | N/A |
Question
Which of the following correctly describes the entropy changes of the water molecules and the universe when a sample of water freezes?
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Show 101 related questions
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- 17N.3.SL.TZ0.8c: The initial temperature of the gas is 290 K. Calculate the temperature of the gas at the...
- 17N.3.SL.TZ0.8b: Using the axes, sketch the three-step cycle.
- 17N.3.SL.TZ0.8a: Show that the volume of the gas at the end of the adiabatic expansion is approximately 5.3 x...
- 17N.3.SL.TZ0.10d: The Hubble Space reflecting telescope has a Cassegrain mounting. Outline the main optical...
- 17N.3.SL.TZ0.10c: The final image of the Moon is observed through the eyepiece. The focal length of the...
- 17N.3.SL.TZ0.10b: When the Earth-Moon distance is 363 300 km, the Moon is observed using the telescope. The...
- 17N.3.SL.TZ0.10a: Complete the diagram, with a Newtonian mounting, continuing the two rays to show how they...
- 17M.3.SL.TZ2.7b: State and explain at which point in the cycle ABCA the entropy of the gas is the largest.
- 17M.3.SL.TZ2.7a.iv: Determine the efficiency of the heat engine.
- 17M.3.SL.TZ2.7a.iii: Show that the thermal energy removed from the gas for the change BC is approximately 330 J.
- 17M.3.SL.TZ2.7a.ii: Show that the temperature of the gas at C is 386 K.
- 17M.3.SL.TZ2.7a.i: Justify why the thermal energy supplied during the expansion AB is 416 J.
- 17M.3.SL.TZ1.6e: State a reason why a Carnot cycle is of little use for a practical heat engine.
- 17M.3.SL.TZ1.6d.ii: The volume at C is 2.90 × 10–3\(\,\)m3. Calculate the temperature at C.
- 17M.3.SL.TZ1.6d.i: Show that \({P_B}V_B^{\frac{5}{3}} = nR{T_C}V_C^{\frac{2}{3}}\)
- 17M.3.SL.TZ1.6c.ii: The volume at B is 2.30 × 10–3\(\,\)m3. Determine the pressure at B.
- 17M.3.SL.TZ1.6c.i: Determine the temperature of the gas at A.
- 17M.3.SL.TZ1.6b: Identify the two isothermal processes.
- 17M.3.SL.TZ1.6a: State what is meant by an adiabatic process.
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- 16N.3.SL.TZ0.10c: The nuclear power plant works at 71.0% of the Carnot efficiency. The power produced is 1.33...
- 16N.3.SL.TZ0.10b: Explain, with a reason, why a real nuclear power plant operating between the stated...
- 16N.3.SL.TZ0.10a: Calculate the Carnot efficiency of the nuclear power plant.
- 16M.3.SL.TZ0.8b: (i) State the change in entropy of a gas for the adiabatic expansion from A to D. (ii)...
- 16M.3.SL.TZ0.8a: (i) Calculate the temperature at C. (ii) Calculate the change in internal energy for...
- 15M.1.HL.TZ2.8: An ideal gas undergoes adiabatic expansion from state X to a new state of volume V. During...
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- 15M.2.SL.TZ1.3b: Three ice cubes at a temperature of 0°C are dropped into a container of water at a...
- 15M.2.HL.TZ1.4a: Estimate the total work done in the cycle.
- 15M.2.HL.TZ1.4b: The change AB is isothermal and occurs at a temperature of 420K. Calculate the number of...
- 15M.2.HL.TZ1.4c: Identify and explain the change, if any, in the entropy of the gas when it has completed one...
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- 15M.2.HL.TZ2.7e: For the cycle identify, with the letter I, an isochoric (isovolumetric) change.
- 15M.2.HL.TZ2.7f: The temperature at point X is 310 K. Calculate the temperature at point Y.
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- 15M.2.HL.TZ2.7h: The work done on the gas during the adiabatic compression XY is 210 J. Determine the change...
- 14M.1.HL.TZ1.12: The pressure–volume (P–V) graph shows an adiabatic compression of a fixed mass of an ideal...
- 14M.1.HL.TZ2.12: Which process will increase the entropy of the local surroundings? A. The melting of a block...
- 14M.2.HL.TZ1.7e: (i) State what is meant by an isothermal process. (ii) Show that process AB is isothermal.
- 14M.2.HL.TZ1.7f: State the nature of process BC.
- 14M.2.HL.TZ1.7h: Explain why it is not possible for this engine, operating in this cycle, to be 100% efficient.
- 14M.2.HL.TZ1.7g: During the cycle ABCD, the net work done by the gas is 550J. Calculate the net thermal energy...
- 15N.1.HL.TZ0.9: The graph shows how the volume of a system varies with pressure during a cycle ABCA. What...
- 15N.1.HL.TZ0.10: A system consists of a refrigerator with its door open operating in a thermally insulated...
- 15N.2.HL.TZ0.4a: Calculate the temperature of the gas at point C.
- 15N.2.HL.TZ0.4b: Compare, without any calculation, the work done and the thermal energy supplied along route...
- 14N.1.HL.TZ0.9: Which of the following can be deduced from the second law of thermodynamics? A. Thermal...
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- 14N.2.HL.TZ0.8f: Determine the work done during the change represented by line A.
- 14N.2.HL.TZ0.8g: Outline, with reference to the first law of thermodynamics, the direction of change in...
- 14M.2.HL.TZ2.9b: State the nature of the change in the gas that takes place during process BC in the cycle.
- 14M.2.HL.TZ2.9a: At point A in the cycle, the fuel-air mixture is at 18 °C. During process AB, the gas is...
- 14M.2.HL.TZ2.9c: Process CD is an adiabatic change. Discuss, with reference to the first law of...
- 14M.2.HL.TZ2.9d: Explain how the diagram can be used to calculate the net work done during one cycle.
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- 12N.1.HL.TZ0.11: An ideal gas expands adiabatically. What energy change is true for the gas? A. It gains...
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- 13N.1.HL.TZ0.9: A piece of ice melts at constant temperature. Which of the following gives the correct change...
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- 12M.1.HL.TZ1.8: The entropy of a system A. will decrease if the system’s temperature is increased. B. is...
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- 13M.2.HL.TZ1.12a: With respect to a gas, explain the meaning of the terms thermal energy and internal energy.
- 11M.1.HL.TZ2.12: The diagram shows the...
- 11M.1.HL.TZ2.11: During an adiabatic...
- 12M.1.HL.TZ2.12: The following statement refers to question 11 and question 12. A gas is contained in a...
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- 11M.2.HL.TZ2.5b: ...
- 11M.2.HL.TZ2.5c: ...
- 11M.2.HL.TZ2.5a: ...
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- 12N.2.HL.TZ0.6a: Calculate the number of moles of air in the cylinder.
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- 11M.1.HL.TZ1.8: Which of the following is equivalent to the principle of energy conservation? A. Newton’s...
- 11M.1.HL.TZ1.9: An ideal gas undergoes the thermodynamic changes represented in the P –V diagram below...
- 11M.2.HL.TZ1.4c: The gas is isothermally compressed from state B back to state A. (i) Using the P–V diagram...
- 11M.2.HL.TZ1.4a: Calculate the temperature of the gas in state B.
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- 10M.1.HL.TZ1.14: The diagram shows the pressure \(p\) and volume \(V\) relationship for one cycle of operation...
- 10N.1.HL.TZ0.10: An ideal gas expands isothermally from a state X to a new state of volume \(V\). The work...
- 09N.1.HL.TZ0.13: The graph below shows the variation of the pressure \(p\) with volume \(V\) of an ideal gas...
- 10M.1.SL.TZ1.11: A gas is contained in a cylinder by a piston. The gas is compressed rapidly by moving the...
- 10N.2.HL.TZ0.B3d: (i) State the meanings of \(Q\) and \(W\). \(Q\): \(W\): (ii) Describe how the...
