Which of the following is not true?

  • A
    $A$ system does not contain heat.
  • B
    $A$ system contains internal energy.
  • C
    $A$ system contains heat.
  • D
    Heat is evolved during the combustion of methane.

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Calculate the $PV$ type of work for the following reaction at $1 \ bar$ pressure. $C_3H_{6(g)} (150 \ mL) + HCl_{(g)} (150 \ mL) \longrightarrow C_3H_7Cl_{(g)} (150 \ mL)$ (in $J$)

What is molar enthalpy of vaporization?

For which of the following systems, the difference between $\Delta H$ and $\Delta U$ is not significant?
$(i)$ Solids
$(ii)$ Gases
$(iii)$ Mixture of gases and liquids
$(iv)$ Liquids

The formula for the Joule-Thomson coefficient is ............. .

Which among the following is $\text{NOT}$ an extensive property?

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