What is the volume of 1 mole of helium gas when the pressure is 1.47 atm and the temperature is 287k

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Classify this reaction: 2al+n2-> aln.

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves