JEE Advanced 2013 Paper 2 Offline | Thermodynamics Question 27 | Chemistry

JEE Advanced 2013 Paper 2 Offline

MCQ (Single Correct Answer)

-1

A fixed mass m of a gas is subjected to transformation of states from K to L to M to N and back to K as shown in the figure.

JEE Advanced 2013 Paper 2 Offline Chemistry - Thermodynamics Question 13 English Comprehension

The pair of isochoric processes among the transformation of states is

K to L and L to M

L to M and N to K

L to M and M to N

M to N and N to K

JEE Advanced 2013 Paper 1 Offline

MCQ (Single Correct Answer)

-0.75

The standard enthalpies of formation of CO₂(g), H₂O(l) and glucose(s) at 25^oC are –400 kJ/mol, –300 kJ/mol and –1300 kJ/mol, respectively. The standard enthalpy of combustion per gram of glucose at 25^oC is

+2900 kJ

– 2900 kJ

–16.11 kJ

+16.11 kJ

IIT-JEE 2012 Paper 2 Offline

MCQ (Single Correct Answer)

-1

Using the data provided, calculate the multiple bond energy (kJ mol^$$-$$1) of a C=C bond in C₂H₂. That energy is (take the bond energy of C-H bond as 350 kJ mol^$$-$$1).

$$\matrix{ \hfill {2C(s) + {H_2}(g) \to {C_2}{H_2}} & \hfill {\Delta H = 225\,kJ\,mo{l^{ - 1}}} \cr \hfill {2C(s) \to 2C(g)} & \hfill {\Delta H = 1410\,kJ\,mo{l^{ - 1}}} \cr \hfill {{H_2}(g) \to 2H(g)} & \hfill {\Delta H = 330\,kJ\,mo{l^{ - 1}}} \cr } $$

1165 kJ mol^$$-$$1

837 kJ mol^$$-$$1

865 kJ mol^$$-$$1

815 kJ mol^$$-$$1

IIT-JEE 2011 Paper 2 Offline

MCQ (Single Correct Answer)

-1

Match the transformations in column I with appropriate options in column II

Column I
(A) CO₂(s) $$\to$$ CO₂(g)
(B) CaCO₃(s) $$\to$$ CaO(s) + CO₂(g)
(C) 2H $$\to$$ H₂(g)
(D) P_{(white, solid)} $$\to$$ P_{(red, solid)}

Column II
(p) phase transition
(q) allotropic change
(r) $$\Delta H$$ is positive
(s) $$\Delta S$$ is positive
(t) $$\Delta S$$ is negative

A $$\to$$ p,r,s; B $$\to$$ r,s; C $$\to$$ t; D $$\to$$ p,q,t

A $$\to$$ r,s; B $$\to$$ p,s; C $$\to$$ t; D $$\to$$ p,q,t

A $$\to$$ p,r,s; B $$\to$$ r,s; C $$\to$$ r; D $$\to$$ p,t

A $$\to$$ p,r,s; B $$\to$$ r,s; C $$\to$$ t; D $$\to$$ q,t

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