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Which element at 101.3kPa and 298 K?
At 101.3 kPa and 298 K, the element present is likely to be oxygen (O2) due to its high natural abundance in the atmosphere and its physical properties at that temperature and pressure.
Which compound is formed from its elements by an exothermic reaction at 298 K and 101.3 kPa?
Carbon dioxide (CO2) is formed from its elements (carbon and oxygen) by an exothermic reaction at 298 K and 101.3 kPa.
How do you convert 298 degrees Fahrenheit to kelvin?
To convert Fahrenheit to Kelvin, you can use the formula K = (F - 32) x 5/9 + 273.15. Plugging in 298 degrees Fahrenheit gives you K = (298 - 32) x 5/9 + 273.15, which equals approximately 425.37 Kelvin.
What is the Kelvin temperature of 25 degree Celsius?
To convert Celsius to Kelvin, add 273. So, the Kelvin temperature of 25 degrees Celsius is 298 Kelvin (25 + 273 = 298).
A sample of nitrogen occupies 10 liters at 25oC and 98 7 kPa What would be the volume at 20oC and 102 7 kPa?
To solve this problem, we can use the combined gas law formula: P1V1/T1 = P2V2/T2 By substituting the values: (98.7 kPa)(10 L)/(298 K) = (102.7 kPa)(V2)/(293 K) Rearranging the equation gives: V2 = (98.7 kPa * 10 L * 293 K) / (102.7 kPa * 298 K) ≈ 9.75 L Therefore, the volume at 20°C and 102.7 kPa would be approximately 9.75 liters.
