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Bohr's Model of a Hydrogen Atom

Identify the ...

Question

Identify the state functions.

A

S

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B

q

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C

w

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D

q + w

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Solution

The correct options are
A $S$
D $q + w$
Both work and heat are path functions. Their values depends on the path chosen to reach a particular state.
However, the change in internal energy is equal to the sum of heat and work. It is a state function. Its value is independent of the path chosen to reach a particular state.
Entropy is a state function. Its value is independent of the path chosen to reach a particular state.

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Similar questions

Q. Neither q nor w is a state function but q+w is a state function. Why?

Q. What do you understand by state function? Neither

q

w

is a state function but

q + w

is a state function. Explain.

Q. Which of the following are not state functions?
(I)

q + w

q

w

H - T S

Q. Assertion :Between two thermodynamic states, the value of

(Q - W)

is constant for any process. Reason:

Q

W

are path functions.

Q. Consider the following relations from A to B where A = {u, v, w, z} and B= {p, q. r, s}.
1. {(u. p), (v, p), (w, p), (x, q), (y, q), (z, q)}
2. {(u, p), (v, q), (w, r), (z, s)}
3. {(u, s), (v, r), (w, q), (u, p), (v, q), (z, q)}
4. {(u, q), (v, p), (w, s), (x, r), (y, q), (z, s)}
Which of the above relations are not functions ?

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