+91-87964 74404
FlagBACK
Question icon
Grade 12th passPhysical Chemistry

Statement I: The freezing of water is an exothermic process Because
Statement II: Energy is released when covalent bonds are formed.
A) T, T B) F,F
C) F,T D) T,F

Profile image of Mayank Ranka
5 Years agoGrade 12th pass
Answers icon

2 Answers

Profile image of Rituraj Tiwari
5 Years ago
When thewateris placed in a freezer, thewaterslowly loses heat to the surrounding cold air. Thewatermolecules on losing energy begin to move slowly, come closer and pack close enough to change to ice. In thisprocess, thewaterreleases heat to the surroundings, so it is anexothermic process.
Profile image of Vikas Amritiya
5 Years ago
Dear student
Freezing is a process of liquid changing its state to solid. In this process, the water releases heat to the surroundings, so it is an exothermic process.
When water lose energy, the individual molecules move slower (decreased kinetic energy). Eventually the water molecules will become locked in place (freeze) as they maximize the number of hydrogen bonds they form with other water molecules.  

Other Related Questions on physical chemistry

question mark
Which of the following aqueous solutions remains neutral after
electrolysis
physical chemistry
0 Answer Available

Last Activity: 3 Years ago

question mark
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
 
physical chemistry
1 Answer Available

Last Activity: 3 Years ago

question mark
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
physical chemistry
1 Answer Available

Last Activity: 3 Years ago

question mark
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
physical chemistry
1 Answer Available

Last Activity: 4 Years ago

question mark
A 100 cm cube solution of sodium carbonate is prepared by dissolving 8.653 g of salt in water the density of solution is 1.0816g per ml what are the molarity and molality of the solution.
 
physical chemistry
1 Answer Available

Last Activity: 4 Years ago