Question

13. What is the change in internal energy when
an ideal gas expands isothermally?
a) positive
b) negative
c) zero
d) Any of these depending on system
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Answer 1

(c) zero

internal energy is due to motion of particles in a system. A internal energy depends on temperature. As we know temp in isothermal process is constant so the internal energy will also be constant thus the change in internal energy will be ZERO

Answer 2

Answer:

(c) zero

internal energy is due to motion of particles in a system. A internal energy depends on temperature. As we know temp in isothermal process is constant so the internal energy will also be constant thus the change in internal energy will be ZERO

Explanation: