Which of the following process/processes release heat?(i) condensation (ii) vaporisation(iii) freezing (iv) melting(a) only (i)(b) only (iv)(c) (i) and (iii)(d) (ii) and (iv)
Correct Answer: (c) (i) and (iii)
Explanation: Condensation and freezing release heat that lead to a decrease in kinetic energy of molecules. When the substance gets cool enough its particles become slower or stop their movement and change their phase into liquid and solid on condensing and freezing respectively.
Related Articles
- Which of the following are compounds?(i) CO (ii) No(iii) NO (iv) Co(a) (i) and (ii)(b) (ii) and (iii)(c) (i) and (iii)(d) (ii) and (iv)
- Which of the following are homogeneous in nature?icewoodsoilair(a) (i) and (iii)(b) (ii) and (iv)(c) (i) and (iv) (d) (iii) and (iv)
- Which of the following can sometimes be ‘zero’ for a moving body?(i) average velocity (ii) distance travelled (iii) average speed (iv) displacement(a) only (i) (b) (i) and (ii)(c) (i) and (iv)(d) only (iv)
- Which of the following are physical changes?Melting of iron metalRusting of ironBending of an iron rodDrawing a wire of iron metal(a) (i), (ii) and (iii)(b) (i), (ii) and (iv)(c) (i), (iii) and (iv) (d) (ii), (iii) and (iv)
- Consider the list of terms given below:$(i)$. Tsunami $(ii)$. Landslides$(iii)$. Floods $(iv)$. LightningEarthquakes can cause$(a)$. $(i)$, $(ii)$ and $(iii)$ $(b)$. $(ii)$ and $(iv)$ $(c)$. $(ii)$, $(iii)$ and $(iv)$ $(d)$. $(iii)$ and $(iv)$
- A list of mediums is given below$(i)$. Wood $(ii)$. Water$(iii)$. Air $(iv)$. VacuumIn which of these mediums can sound travel?$(a)$. $(i)$. and $(ii)$$(b)$. $(i)$., $(ii)$. and $(iii)$$(c)$. $(iii)$. and $(iv)$$(d)$. $(ii)$., $(iii)$. and $(iv)$
- Which of the following are also considered to be the states of matter?(i) Plasma (ii) Platelets(iii) BEC (iv) BHC(a) (i) and (ii)(b) (ii) and (iii)(c) (i) and (iii)(d) (ii) and (iv)
- Which of the following are not ionic compounds?KClHClCCl4NaCl(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iii)
- Which muscles act involuntarily?Striated musclesSmooth musclesCardiac musclesSkeletal muscles(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iv)
- Which of the following are chemical changes?(i) decaying of wood(ii) burning of wood(iii) sawing of wood(iv) hammering of a nail into wood(a) (i) and (ii) (b) (ii) and (iii)(c) (iii) and (iv) (d) (i) and (iv)
- Identify the unsaturated compounds from the followingPropanePropenePropyneChloropropane(a) (i) and (ii) (b) (ii) and (iv)(c) (iii) and (iv) (d) (ii) and (iii)
- Given below are some adaptive features of animals:(i) Layer of fat under the skin(ii) Long, curved and sharp claws(iii) Slippery body(iv) Thick white fur Which of them are the adaptive features of a polar bear?(a) (i) only(b) (i) and (ii) only(c) (i), (ii) and (iii) only(d) (i), (ii) and (iv) only
- Dalton’s atomic theory successfully explainedLaw of conservation of massLaw of constant compositionLaw of radioactivityLaw of multiple proportion(a) (i), (ii) and (iii)(b) (i), (iii) and (iv)(c) (ii), (iii) and (iv)(d) (i), (ii) and (iv)
- Which of the following are the correct characteristics of isotopes of an element?(i) same atomic mass(ii) same atomic number(iii) same physical properties(iv) same chemical properties(a) (i), (ii) and (iv)(b) (ii), (iii) and (iv)(c) (ii) and (iii)(d) (ii) and (iv)
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies