A canister of 2.00 moles of helium has a volume of 30.0 L and is at a temperature of 293 Kelvin. what is the pressure of this gas?
1. 19.5 kPa
2. 101.3 kPa
3. 162 kPa
4. 211 kPa

How does climate change cause the ocean's thermohaline current to slow down?

What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .