THERMODYNAMICS Complete the crossword puzzle below Across 1. Entropy of universe increases in spontaneous reactions and remain unchanged in equilibrium 2. Work done on surrounding 9. System which matter & energy can be transferred between system and surroundings 11. Energy transfer between system and surrounding due to force acting through distance 12. Amount of heat required to increase temperature by 1K or 1°C 16. A ball rolling uphill 19. Total energy of a system 20. Energy can be converted from one to another but cannot be created or destroyed 21. Products can react to produce the original reactants again Down Created using the Crossword Maker on The TeachersCorner.net 1. Sugar dissolves in water 3. Positive sign shows a non spontaneous reaction 4. Zero heat exchange between the system & surroundings. 5. Ideal system 6.
- Thermal energy in chemical reaction 8. System and surrounding cannot be restored to their initial conditions 10. Work done by surrounding 13.
- Constant temperature 15. Thermodynamic term to determine the spontaneity of reaction 17. Energy but no matter can be transferred between system and surroundings 18. Energy transfer between system and surrounding due to temperature difference
The Correct Answer and Explanation is:
Based on the clues provided for the thermodynamics crossword puzzle, here are the correct answers:
Across
2. EXPANSION
9. OPEN
11. WORK
12. HEATCAPACITY
16. NONSPONTANEOUS
19. INTERNALENERGY
20. FIRSTLAW
21. REVERSIBLE
Down
- SPONTANEOUS
- GIBBSFREEENERGY
- ADIABATIC
- ISOLATED
- ENTHALPY
- KINETIC
- IRREVERSIBLE
- COMPRESSION
- ISOCHORIC
- ISOTHERMAL
- ENTROPY
- CLOSED
- HEAT
This crossword puzzle covers fundamental concepts in thermodynamics, the study of energy, heat, and work. The answers reveal the core principles and vocabulary of this field.
The laws of thermodynamics are represented by FIRSTLAW (20-Across), which is the principle of energy conservation, and the concept behind the clue for ENTROPY (15-Down), which relates to the Second Law. Entropy is a measure of disorder, and it increases in any SPONTANEOUS (1-Down) process, like sugar dissolving. A process that requires external energy, such as a ball rolling uphill, is NONSPONTANEOUS (16-Across). The ultimate factor for determining reaction spontaneity is GIBBSFREEENERGY (3-Down).
Energy within a system is accounted for in several ways. The total energy is the INTERNALENERGY (19-Across). Energy transferred due to a temperature difference is HEAT (18-Down), while energy transferred by a force over a distance is WORK (11-Across). Work can involve EXPANSION (2-Across), where the system does work on the surroundings, or COMPRESSION (10-Down), where the surroundings do work on the system.
Thermodynamic systems are classified by how they interact with their surroundings. An OPEN system (9-Across) exchanges both energy and matter. A CLOSED system (17-Down) exchanges energy but not matter, and an ISOLATED system (5-Down) exchanges neither.
Processes are often described by what is held constant. An ISOTHERMAL process (14-Down) occurs at constant temperature, an ISOCHORIC process (13-Down) at constant volume, and an ADIABATIC process (4-Down) involves no heat exchange. Finally, processes can be REVERSIBLE (21-Across), meaning they can be returned to their original state, or IRREVERSIBLE (8-Down), where they cannot.thumb_upthumb_down
