Problem: Please answer a question about the following article about Hydrogen:
Hydrogen is commonly used in power stations as a coolant in generators due to a number of favorable properties that are a direct result of its light diatomic molecules. These include low density, low viscosity, and the highest specific heat and thermal conductivity of all gases.
How is hydrogen used at power stations?
A: as a coolant in generators
Problem: Please answer a question about the following article about Russian Soviet Federative Socialist Republic:
The international borders of the RSFSR touched Poland on the west; Norway and Finland on the northwest; and to its southeast were the Democratic People's Republic of Korea, Mongolian People's Republic, and the People's Republic of China. Within the Soviet Union, the RSFSR bordered the Ukrainian, Belarusian, Estonian, Latvian and Lithuanian SSRs to its west and Azerbaijan, Georgian and Kazakh SSRs to the south.
Along with Norway, what country borders the RSFSR on the northwest?
A: Finland
Problem: Please answer a question about the following article about Light-emitting diode:
LEDs have been developed by Seoul Semiconductor that can operate on AC power without the need for a DC converter. For each half-cycle, part of the LED emits light and part is dark, and this is reversed during the next half-cycle. The efficacy of this type of HP-LED is typically 40 lm/W. A large number of LED elements in series may be able to operate directly from line voltage. In 2009, Seoul Semiconductor released a high DC voltage LED, named as 'Acrich MJT', capable of being driven from AC power with a simple controlling circuit. The low-power dissipation of these LEDs affords them more flexibility than the original AC LED design.
When did Seoul Semiconductor release the first high DC voltage LED?
A: 2009
Problem: Please answer a question about the following article about Aspirated consonant:
The term aspiration sometimes refers to the sound change of debuccalization, in which a consonant is lenited (weakened) to become a glottal stop or fricative [ʔ h ɦ].
What is another term for a consonant being weakened?
A:
lenited