25.9 moles of helium are present in a 35.2 liter tank at a pressure of 1635 kPa. at what temperature (in kelvin) is the gas being held? (R=8.31 kPa•L/mol•K)

the answers would be

the first one and the second one

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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