The temperature of a body decreases when drops of liquid placed on it evaporate because?

Assessment: JAMB UTME - Chemistry - 1997 Subject: Chemistry

Question 1 Report

The temperature of a body decreases when drops of liquid placed on it evaporate because?
Answer Details
When drops of liquid are placed on a body, they will evaporate if the body temperature is higher than the boiling point of the liquid. Evaporation is a cooling process that occurs when molecules escape from the surface of a liquid and take away heat energy with them. In the case of drops of liquid on a body, the heat energy required for the phase transition from liquid to gas is drawn from the body, causing it to cool down. This is known as the heat of vaporization, and it is the reason why the temperature of a body decreases when drops of liquid placed on it evaporate. Therefore, the correct answer to the question is "the heat of vaporization is drawn from the body causing it to cool".
Read lesson note on Kinetic Theory Of Matter And Gas Laws (JAMB)
View Answer

Related Questions

1

(1 /(2) N2(g) + (1) / (2)O2(g) → NO(g) ∆H° 89 KJ mol-. If the entropy change for the reaction above at 25°C is 11.8 J mol-, calculate the change in free ener...
2

A sample of a substance containing only C and H burns in excess O2 to yield 4.4g of CO2 And 2.7 g of H2O. The empirical formula of a substance is?(C = 12, O ...
3

Synthetic rubber obtained by the polymerization of chlorobutadiene in the presence of sodium is called?
4

An undesirable paraffin in the petroleum industry which is particularly prone to knocking is?
5

The reaction of an alkanol with an alkanoic acid in the presence of concentrated H2SO4 will produce an?
6

Sodium hydroxide is prepared commercially from sodium chloride solution by?
7

25 cm3 of 0.02 M KOH neutralized 0.03 g of a monobasic organic acid having the general formula CnH2n + 1 COOH. The molecular formula of the acid is?(C = 12, ...
8

The synthetic detergents are preferred to soap for laundry using hard water because?

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning