Complete the first row in the table by filling in the missing information about a system at equilibrium.
2 answers:
Answer:
Explanation:
Equilibrium system: It is defined as that condition when the rate of forward reaction is equal to rate of backward reaction.
It is also defined as that condition concentration of reactantsx and concentrations of products are constant .
Suppose a reaction
Equilibrium constant,
Equilibrium constant,
When the reaction is not in equilibrium then reaction constant
When the reaction is in equilibrium then the equilibrium constant is equal to reaction constant
Hence,
When Q < K then the concentrations of reactants are greater than the concentrations of products.
When Q > K then the concentrations of products are greater than the concentration of reactants.
Answer :
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Answer:
Total energy required to raise the temperature of 425 g of tin from 298.15 K to 505.05 K and to melt the tin at 505.05 K is 45.249 kiloJoules.
Explanation:
Mass of the tin ,m= 425 g
Heat capacity of the tin ,c= 0.227 J/g K
Initial temperature of the tin ,= 25.0 °C = 298.15 K
Final temperature of the tin, = 231.9 °C = 505.05 K
Let the heat required to change the temperature of tin from 298.15 K to 505.05 K be Q.
Heat required to melt tin at 505.05 K be Q'
The heat of fusion of tin metal =
Total energy required to raise the temperature of 425 g of tin from 298.15 K to 505.05 K and to melt the tin at 505.05 K is:
= Q+Q' = 19.961 kJ + 25.288 kJ = 45.249 kJ