MCQ
Which of the following is an endothermic process?
- ADilution of sulphuric acid.
- ✓Sublimation of dry ice.
- CCondensation of water vapours.
- DRespiration in human beings.
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|
S. No.
|
$\angle \text{ i}$
|
$\angle \text{ r}$
|
$\angle \text{ e}$
|
| $I$ |
$60^{0}$
|
$40^{0}$
|
$61^{0}$
|
| $II$ |
$50^{0}$
|
$36^{0}$
|
$51^{0}$
|
| $III$ |
$40^{0}$
|
$28^{0}$
|
$39^{0}$
|
| $IV$ |
$30^{0}$
|
$20^{0}$
|
$31^{0}$
|