Q.3.67 Calculate the energy to heat two... [FREE SOLUTION]

Chapter 3: Q.3.67 (page 91)

Calculate the energy to heat two cubes (gold and aluminium) each with a volume of $10 c m^{3}$ from $15^{o} C$ to $25^{o} C$ . Refer to Tables 2.8 and 3.11. (3.6)

Short Answer

Expert verified

The energy to heat two cubes (gold and aluminium) is $249 J$ and $242 J$ repectively

Step by step solution

introduction

the specific heat limit of a substance is the intensity limit of an example of the substance partitioned by the mass of the example, additionally in some cases alluded to as massic heat limit

explanation part (1)

Given,

the volume of gold cube= $10 c m^{3}$ and density = $19.3 g / c m^{3}$

specific heat of gold c = $0.129 J / g^{0} C$

The mass is density $脳$ volume

$10 脳 19.3 = 193 g$

The change in temperature is,

$螖 T = 25^{0} C 鈭� 15^{鈭�} C = 10^{o} C$

The heat required is $Q = 尘肠螖罢$

$193 脳 0.129 脳 10 = 249 J$

explanation part (2)

Given,

the volume of aluminium cube = $10 c m^{3}$ and density = $2.70 g / c m^{3}$

specific heat of aluminium c = $0.897 J / g .^{0} C$

The mass is density $脳$ volume

$10 脳 2.7 = 27 g$

The change in temperature is,

$螖 T = 25^{0} C 鈭� 15^{0} C 1 = 10^{o} C$

The heat required is $Q = m c 螖 T$

$27 脳 10 脳 0.897 = 242 J$

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91影视

Calculate the energy to heat two cubes (gold and aluminium) each with a volume of $10 c m^{3}$ from $15^{o} C$ to $25^{o} C$ . Refer to Tables 2.8 and 3.11. (3.6)

Short Answer

Step by step solution

introduction

explanation part (1)

explanation part (2)

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91影视

Calculate the energy to heat two cubes (gold and aluminium) each with a volume of 10cm3from 15oCto 25oC. Refer to Tables 2.8 and 3.11. (3.6)

Short Answer

Step by step solution

introduction

explanation part (1)

explanation part (2)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

The Earths Atmosphere

Physical Chemistry

Kinetics

Inorganic Chemistry

Ionic and Molecular Compounds

Chemical Analysis

Study anywhere. Anytime. Across all devices.

Calculate the energy to heat two cubes (gold and aluminium) each with a volume of $10 c m^{3}$ from $15^{o} C$ to $25^{o} C$ . Refer to Tables 2.8 and 3.11. (3.6)