I think the answer to this question is three or 3
Answer:
D. Na₂SO₃
Explanation:
The given equation is:
2HNO₃ + Na₂SO₃ → 2NaNO₃ + H₂O + SO₂
The reaction equation is shown above. In chemical reactions, the left hand side is made up of the reactants and the right hand side is made up of the products.
The reactants in the equation are:
HNO₃ and Na₂SO₃
Answer:
Cooling Steam at 100 C to ice at 0 C
Explanation:
Answer:
14 g of N2
Explanation:
If we look at the options, we will notice that the correct answer needs to be a gas that has about half of the molecular mass of the gas.
If we consider nitrogen gas whose molecular mass is 28g/mol, half of the molecular mass is 14 g.
So;
28g of N2 contains 6.02 × 10^23 molecules of N2
14g of N2 contains 14 × 6.02 × 10^23 /28
= 3.0 x 10^23
Explanation:
The given data is as follows.
Mass of refrigerant, m = 10 kg
Volume of the refrigerant, V = 1.595 
Formula for specific volume of the refrigerant is as follows.
v = 
= 0.1595 
So, at
specific volume will be within
and
and pressure is constant.
The fluid will be in super-heated state at temperature
and at T =
pressure 1 bar = 0.1 MPa.
According to super-heated tables, the specific volume is v = 0.30138
.
Hence, the final volume will be calculated as follows.

= 
= 3.0138 
Thus, we can conclude that final volume of the R-134a is 3.0138
.