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For an isothermal reversible expansion process, the value of $q$ can be calculated by the expression

• ✓
  $q = 2.303\,nRT\,\log \,\frac{{{V_2}}}{{{V_1}}}$
• B
  $q = -2.303\,nRT\,\log \,\frac{{{V_2}}}{{{V_1}}}$
• C
  $q =  - 2.303\,nR\,\log \,\frac{{{V_1}}}{{{V_2}}}$
• D
  $q =  - {P_{\exp }}\,nRT\,\log \,\frac{{{V_1}}}{{{V_2}}}$