An endotthermic reaction is non-spontane...

An endotthermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then:

`DeltaH=`negative, `DeltaS`=positive

both `DeltaH and DeltaS` are positive

Both `DeltaH and DeltaS` are negative

`DeltaH`=positive, `DeltaS`=negative

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

MHTCET 2019 PAPER 2
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise CHEMSITRY|50 Videos
MOCK TEST 2
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQs|50 Videos

Similar Questions

Explore conceptually related problems

Free enegry , G = H - TS , is state function that indicates whther a reaction is spontaneous or non-spontaneous. If you think of TS as the part of the system's enegry that is disordered already, then (H -TS) is the part of the system's energy that is still ordered and therefore free to cause spontaneous change by becoming disordered. Also, DeltaG = DeltaH - T DeltaS From the second law of thermodynamics, a reaction is spontaneous if Delta_("total")S is positive, non-spontaneous if Delta_("total")S is negative, and at equilibrium if Delta_('total")S is zero. Since, -T DeltaS = DeltaG and since DeltaG and DeltaS have opposite sings, we can restate the thermodynamic criterion for the spontaneity of a reaction carried out a constant temperature and pressure. IF DeltaG lt 0 , the reaction is spontaneous. If DeltaG gt 0 , the reaction is non-spontaneous. If DeltaG = 0 , the reaction is at equilibrium. Read the above paragraph carefully and answer the following questions based on the above comprehension. If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then

If an endothermic reaction is non - spontaneous at freezing of water and becomes feasible at its boiling point, then

A reaction is non-spontaneous when:

Boiling point of water

The following reaction is non-spontaneous

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MOCK TEST 1-MCQs

Which of the following is not correct about the solution when moderate...
Text Solution
|
Polyphosphates are used for softening agents because they
Text Solution
|
An organic compound (A) contatns 20% C, 46.66% N and 6.66% H. It gave ...
Text Solution
|
Hydrocarbons are formed when aldehydes and ketones are reduced with am...
Text Solution
|
A compound CuCl has face - centred cubic structure. Its density is 3.4...
Text Solution
|
An endotthermic reaction is non-spontaneous at freezing point of water...
Text Solution
|
What weight of copper will be deposited by passing 2 faradays of elect...
Text Solution
|
Two moles of an ideal gas is expanded isothermally and reversibly from...
Text Solution
|
The enthalpy of vaporisation of a liquid is 30 kJ mol^(-1) and entropy...
Text Solution
|
For a reaction 1//2A to 2B, rate of disappearance of A is related to t...
Text Solution
|
In a first order reaction, the concentration of the reactant decreases...
Text Solution
|
Stability of which intermediate is not governed by hyperconjugation?
Text Solution
|
Aniline is an activated system for electrophilic substitution The comp...
Text Solution
|
Chargaff' a rule states that in an organism:
Text Solution
|
p-chloro aniline and anilinium hydrochloride can be distinguished by
Text Solution
|
During reduction of aldehydes with hydrazine and potassium hydroxide, ...
Text Solution
|
On hydrolysis of starch, we finally get
Text Solution
|
Which of the following can possibly to used as analgesic without causi...
Text Solution
|
Which of the following has magnesium?
Text Solution
|
An alkyl bromine , RBr of molecular weight 151 is the exclusive produc...
Text Solution
|