Answer:
8.77 kilo Joules will be the total amount of heat required for both the heating and the vaporizing.
Explanation:
Moles of ethanol of ethanol = 0.200 mol
Heat required to heat 0.200 moles of ethanol = Q = 1.05 kJ
Enthalpy of vaporization of ethanol =
Heat required to vaporize 0.200 moles of ethanol = Q'
Total heat required to fore heating and the vaporizing :
= Q + Q' = 1.05 kJ + 7.72 kJ = 8.77 kJ
8.77 kilo Joules will be the total amount of heat required for both the heating and the vaporizing.
From the Avogadro's law one mole of a substance contains 6.022× 10^23 particles.
Therefore; 1 mole of water contains 6.022 × 10^23 molecules
Hence 1.7 moles will contain;
1.7 × 6.022 × 10^23 molecules
= 10.2374 × 10^23 molecules
= 1.024 ×10^24 molecules
≈ 1.02 × 10^24 molecules
Answer:
C.) More NO₂ and SO₂ would form
Explanation:
Equilibrium:
This is the state of reaction in which the rate of forward reaction and reverse reaction are same.
There are three factors that effect the equilibrium condition.
The change in concentration
The change in volume
The change in temperature
In given equilibrium reaction,
SO₂ + NO₂ ⇄ NO + SO₃ + heat
when SO₃ is added it means more amount of product is on right side and equilibrium is disturb. Thus equilibrium is shifted toward the left produced more SO₂ and NO₂ and regain the equilibrium.
Answer:
No
Explanation:
When atomic number is increasing its atomic mass increases
Atomic number doesn't affect nuclear charge