MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6

Gary Horner Solutions for Chapter: Form, Exercise 6: Exercise 6

Author:Gary Horner

Gary Horner Chemistry Solutions for Exercise - Gary Horner Solutions for Chapter: Form, Exercise 6: Exercise 6

Attempt the practice questions on Chapter 6: Form, Exercise 6: Exercise 6 with hints and solutions to strengthen your understanding. MYP Chemistry A concept-based approach Years 4&5 solutions are prepared by Experienced Embibe Experts.

Questions from Gary Horner Solutions for Chapter: Form, Exercise 6: Exercise 6 with Hints & Solutions

HARD

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6>Q 1

Compare these values of enthalpies of fusion and vaporization. Explain why the enthalpy of vaporization for a substance is greater than its enthalpy of fusion.

	Enthalpy of fusion $({Jg}^{- 1})$	Enthalpy of vaporization $({Jg}^{- 1})$
Water	$+ 334$	$+ 2.260$
Carbon dioxide	$+ 184$	$+ 574$
Lead	$+ 23$	$+ 871$

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6>Q 2

Explain why the temperature of a boiling liquid does not continue to increases above its boiling point.

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6>Q 3

Steam burns are regarded as being far more harmful than a burn from boiling water. What changes of state is occurring when steam reaches your skin? Why are the burns severe? Explain this in terms of energy transfer.

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6>Q 4

Explain why your skin feels cold when you leave the water after swimming on a hot summer day.

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 6 - Form>Exercise 6>Q 5

Why does boiling liquid immediately stop boiling the moment you remove the source of energy?