RBTS PAPER 3(CHEMISTRY)
3 RBTS PAPER

162634 In which of the following case entropy decreases:

1 Solid changing to liquid
2 Expansion of a gas
3 Crystals dissolve
4 Polymerisation
3 RBTS PAPER

162635 Entropy of an adiabatic reversible process is :

1 Positive
2 Zero
3 Negative
4 Constant
3 RBTS PAPER

162636 Which of the following quantity is not zero for element in standard state :

1 Enthalpy of formation
2 Entropy
3 Free energy of formation
4 All of these
3 RBTS PAPER

162639 For the reaction \(A(s) \rightarrow B(s)+C(g)\) the value of \(\Delta \mathrm{H}=30.56 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta \mathrm{S}=66 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\). The temperature at which the free energy change for the reaction will be zero is :

1 \(373 \mathrm{~K}\)
2 \(413 \mathrm{~K}\)
3 \(463 \mathrm{~K}\)
4 \(493 \mathrm{~K}\)
3 RBTS PAPER

162634 In which of the following case entropy decreases:

1 Solid changing to liquid
2 Expansion of a gas
3 Crystals dissolve
4 Polymerisation
3 RBTS PAPER

162635 Entropy of an adiabatic reversible process is :

1 Positive
2 Zero
3 Negative
4 Constant
3 RBTS PAPER

162636 Which of the following quantity is not zero for element in standard state :

1 Enthalpy of formation
2 Entropy
3 Free energy of formation
4 All of these
3 RBTS PAPER

162639 For the reaction \(A(s) \rightarrow B(s)+C(g)\) the value of \(\Delta \mathrm{H}=30.56 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta \mathrm{S}=66 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\). The temperature at which the free energy change for the reaction will be zero is :

1 \(373 \mathrm{~K}\)
2 \(413 \mathrm{~K}\)
3 \(463 \mathrm{~K}\)
4 \(493 \mathrm{~K}\)
3 RBTS PAPER

162634 In which of the following case entropy decreases:

1 Solid changing to liquid
2 Expansion of a gas
3 Crystals dissolve
4 Polymerisation
3 RBTS PAPER

162635 Entropy of an adiabatic reversible process is :

1 Positive
2 Zero
3 Negative
4 Constant
3 RBTS PAPER

162636 Which of the following quantity is not zero for element in standard state :

1 Enthalpy of formation
2 Entropy
3 Free energy of formation
4 All of these
3 RBTS PAPER

162639 For the reaction \(A(s) \rightarrow B(s)+C(g)\) the value of \(\Delta \mathrm{H}=30.56 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta \mathrm{S}=66 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\). The temperature at which the free energy change for the reaction will be zero is :

1 \(373 \mathrm{~K}\)
2 \(413 \mathrm{~K}\)
3 \(463 \mathrm{~K}\)
4 \(493 \mathrm{~K}\)
3 RBTS PAPER

162634 In which of the following case entropy decreases:

1 Solid changing to liquid
2 Expansion of a gas
3 Crystals dissolve
4 Polymerisation
3 RBTS PAPER

162635 Entropy of an adiabatic reversible process is :

1 Positive
2 Zero
3 Negative
4 Constant
3 RBTS PAPER

162636 Which of the following quantity is not zero for element in standard state :

1 Enthalpy of formation
2 Entropy
3 Free energy of formation
4 All of these
3 RBTS PAPER

162639 For the reaction \(A(s) \rightarrow B(s)+C(g)\) the value of \(\Delta \mathrm{H}=30.56 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta \mathrm{S}=66 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\). The temperature at which the free energy change for the reaction will be zero is :

1 \(373 \mathrm{~K}\)
2 \(413 \mathrm{~K}\)
3 \(463 \mathrm{~K}\)
4 \(493 \mathrm{~K}\)