Chemical Kinetics and Nuclear ChemistryHard
Question
α-maltose (C12H22O11) can be hydrolysed to glucose (C6H12O6) as follows.
C12H22O11(aq) + H2O(l) → 2C6H12O6(aq)
On the basis of following data, identify the correct statement(s) related with the reaction.
$\Delta_{f}H_{C_{12}H_{22}O_{11}(aq)}^{o}$= −2238 kJ/mol, $\Delta_{f}H_{C_{6}H_{12}O_{6}(aq)}^{o}$= −1263 kJ/mol, $\Delta_{f}H_{H_{2}O(l)}^{o}$= −285 kJ/mol
Time (minute) 0 50 100
Conc. of α-maltose (M) 0.4 0.1 0.025
Options
A.The hydrolysis of α-maltose is an exothermic process.
B.Heat liberated in the combustion of 1.0 mole of α-maltose must be greater than the heat liberated in combustion of 2.0 moles of glucose.
C.On increasing the temperature, the extent of hydrolysis of α-maltose will decrease.
D.The hydrolysis of α-maltose follows first-order kinetics.
Solution
(a) ΔrH = $\Sigma$Δf HProducts –$\Sigma$Δf HReactants = 2 × (–1263) – [(–2238) + (–285)] = –3 KJ/mol
(b) Cannot confirm because in aqueous medium, there is no combustion.
(d) Concentration in G.P. in equal time interval.
Create a free account to view solution
View Solution FreeTopic: Chemical Kinetics and Nuclear Chemistry·Practice all Chemical Kinetics and Nuclear Chemistry questions
More Chemical Kinetics and Nuclear Chemistry Questions
The composition of N2O5 is a first order reaction represented by: N2O5 → N2O4 + 1/2O2.After 20 min the volume of O...In the reaction : P + Q →R + S the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. ...Which of the following plots in correctly representing the variation in rate of vaporation and rate of condensation with...A reaction was found to be second order with respect to the concentration of carbon monoxide. If the concentration of ca...Penetrating power of α-particle is :...