a=b=33400 J
c=4180 J
Further explanation
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
The heat to change the phase can be formulated :
Q = mLf (melting/freezing)
Q = mLv (vaporization/condensation)
Lf=latent heat of fusion
Lv=latent heat of vaporization
The heat of fusion for water at 0 °C : 334 J/g and the heat of vaporization at 100 °C : 2,230J/g
a. melting
b. freezing
c.raise the temperature(c water = 4.18 J/g C)
Answer:
I hope this what you had meant ️️
Explanation:
- the surface area of the solute
- the temperature of the solvent, and
- the amount of agitation that occurs when the solute and the solvent are mixed.
Answer:
The correct answer is option b.
Explanation:
Mass of coal burned = 
metric ton = 1.00\times 10^6\times 10^3 kg=10^9 kg[/tex]
1 metric ton = 
Molar mass of coal :
1 g = 0.001 kg
Moles of coal ,n :
If 2 moles of coal on combustion gives 270 moles of carbon dioxide than n moles of coal will give;
of carbon dioxide.
Molar mass of carbon dioxide gas = 44 g/mol = 0.044 kg/mol
Mass of 
of carbon dioxide:
Answer:
does friction talks ? friction is a oppossing force tho
Answer:
Explanation:
The valance of magnesium atom is 
While the valence of nitrogen atom is 
Let us first write the first half-reactions
The second half reaction is
Adding the above two reactions and writing the final reaction, we get -
The balance equation is
