Why does the total energy of an isolated...

Why does the total energy of an isolated system remains constant?

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CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-WARM UP EXERCISE

A particular amount of gas participates separately in the two process ...
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In which of the following reactions is the work done zero? Assign the ...
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Why does the total energy of an isolated system remains constant?
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Write down the mathematical form of the first law of thermodynamics fo...
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According to the first law of thermodynamics, DeltaU=q+w. Write down t...
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Among the following processes identify those in which the change in in...
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A closed system undergoes a process AtoB. If it occurs reversible, the...
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For an ideal gas, the isothermal free expansion and adiabatic free exp...
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For chemical changes, why is the change in enthalpy more useful than t...
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From the equation H=W+PV, explain what H is a state function.
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From the definition of enthalpy show that for n mol of an ideal gas H=...
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Prove that for an ideal gas undergoing an isothermal change, DeltaH=0.
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Under what conditions are (i) DeltaU=q(V)& (ii) DeltaH=q(P) ?
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Why is the heat capacity a path-dependent quantity?
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Heat required to raise the temperatuer of 1 mol of a gas by 1^(@)C is ...
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Why is the molar heat capacity at constant pressure greater than that ...
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c(P)-c(V)=xJ*g^(-1)*K^(-1) and C(P,m)-C(V,m)=Xj*mol^(-1)*K^(-1) for an...
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Why is the sign of DeltaH negative for an exothermic reaction and why ...
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A 0.5 mol sample of H(2)(g) reacts with a 0.5 mol sample of Cl(2)(g) t...
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A 1 mol sample of N(2)(g) reacts with 1 mol of O(2)(g) to form 2 mol o...
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