Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
For "closed systems" with no external source or sink of energy, the first law of thermodynamics states that a system's energy is constant unless energy is transferred in or out by mechanical work or heat, and that no energy is lost in transfer. This means that it is impossible to create or destroy energy. While heat can always be fully converted into work in a reversible isothermal expansion of an ideal gas, for cyclic processes of practical interest in heat engines the second law of thermodynamics states that the system doing work always loses some energy as waste heat. This creates a limit to the amount of heat energy that can do work in a cyclic process, a limit called the available energy. Mechanical and other forms of energy can be transformed in the other direction into thermal energy without such limitations. The total energy of a system can be calculated by adding up all forms of energy in the system.
What states for "open systems" with no external source or sink of energy,that a system's energy is constant unless energy is transferred in or out by mechanical work or heat
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In Texas, English is the state's de facto official language (though it lacks de jure status) and is used in government. However, the continual influx of Spanish-speaking immigrants increased the import of Spanish in Texas. Texas's counties bordering Mexico are mostly Hispanic, and consequently, Spanish is commonly spoken in the region. The Government of Texas, through Section 2054.116 of the Government Code, mandates that state agencies provide information on their websites in Spanish to assist residents who have limited English proficiency.
Are there exceptions to Mexico official language?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Aspirated consonants are not always followed by vowels or other voiced sounds. For example, in Eastern Armenian, aspiration is contrastive even word-finally, and aspirated consonants occur in consonant clusters. In Wahgi, consonants are aspirated only in final position.
Unaspirated consonants are not always followed by what?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Capacitors may catastrophically fail when subjected to voltages or currents beyond their rating, or as they reach their normal end of life. Dielectric or metal interconnection failures may create arcing that vaporizes the dielectric fluid, resulting in case bulging, rupture, or even an explosion. Capacitors used in RF or sustained high-current applications can overheat, especially in the center of the capacitor rolls. Capacitors used within high-energy capacitor banks can violently explode when a short in one capacitor causes sudden dumping of energy stored in the rest of the bank into the failing unit. High voltage vacuum capacitors can generate soft X-rays even during normal operation. Proper containment, fusing, and preventive maintenance can help to minimize these hazards.
What is one way to help maximize capacitor dangers?
A:
unanswerable