6A. State whether each of the following is true or false. Explain your reasoning in each case. (a) q must be zero for an isothermal process (b) q=0 for every cyclic process [A cyclic process is one that begins in one state and undergoes several steps which ultimately bring the system back to the same initial state.] (c) DU=0 for every cyclic process. (d) DT=0 for every adiabatic process in a closed system.

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6A. State whether each of the following is true or false.
Explain your reasoning in each case. (a) q must be zero for an
isothermal process (b) q=0 for every cyclic process [A cyclic
process is one that begins in one state and undergoes several
steps which ultimately bring the system back to the same initial
state.] (c) DU=0 for every cyclic process. (d) DT=0 for every
adiabatic process in a closed system.
Transcribed Image Text:6A. State whether each of the following is true or false. Explain your reasoning in each case. (a) q must be zero for an isothermal process (b) q=0 for every cyclic process [A cyclic process is one that begins in one state and undergoes several steps which ultimately bring the system back to the same initial state.] (c) DU=0 for every cyclic process. (d) DT=0 for every adiabatic process in a closed system.
Expert Solution
Step 1

(a) According to the first law of thermodynamics, the internal energy change of the system is given by:

Chemistry homework question answer, step 1, image 1

Here delta E = change in internal energy

q = heat transfer of the process

w = work done during the process

The internal energy of the system is a function of the temperature. For the isothermal process:

Chemistry homework question answer, step 1, image 2

Thus the given statement is false.

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