Answer:
I think its C if I'm wrong plz forgive me
Missing question:
Suppose Gabor, a scuba diver, is at a depth of 15 m. Assume that:
1. The air pressure in his air tract is the same as the net water pressure at this depth. This prevents water from coming in through his nose.
2. The temperature of the air is constant (body temperature).
3. The air acts as an ideal gas.
4. Salt water has an average density of around 1.03 g/cm^3, which translates to an increase in pressure of 1.00 atm for every 10.0 m of depth below the surface. Therefore, for example, at 10.0 m, the net pressure is 2.00 atm.
T = 37°C = 310 K.
p₁ = 2,5 atm = 253,313 kPa.
p₂ = 1 atm = 101,325 kPa.
Ideal gas law: p·V = n·R·T.
n₁ = 253,313 kPa · 6 L ÷ 8,31 J/mol·K · 310 K.
n₁ = 0,589 mol.
n₂ = 101,325 kPa · 6 L ÷ 8,31 J/mol·K · 310 K.
n₂ = 0,2356 mol.
Δn = 0,589 mol - 0,2356 mol = 0,3534 mol.
Answer:
compound is a material formed by chemically bonding two or more chemical elements.
Explanation:
The answer should be A. "The first law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are subject to the principle of the conservation of energy." (LiveScience) Basically, energy cannot be created nor destroyed, only changed in its form.
The temperature is different because of the molecular make up of sand and water. Sand's atoms are much closer together because it is a solid so they bump into each other causing the substance, in this case sand, to heat up and stay heated longer. Water's atoms are much more spread out than that of sand so it takes longer for it to warm up because the atoms are not bumping into each other as much.