Answer:
The number of moles of nitrogen gas in the tennis ball is 0.0124 moles
Explanation:
Here we have the universal gas equation as
P·V = n·R·T
Where:
P = Pressure of the gas = 212 kPa
V = Volume of the gas = 0.148 L = 0.000148 m³
n = Number of moles
R = Universal gas constant = 8.3145 J / mol·K.
T = Temperature of the gas in Kelvin = 32 + 273.15 = 305.15 K
Therefore,
The number of moles of nitrogen gas in the tennis ball = 0.0124 moles.
Group 8
Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
I think the right answer for this question is option A. The energy absorbed so the mass will be increased.
Chemists use balanced chemical equations as a basis to calculate how much reactant is needed or how much product will be formed in a reaction.
