Specific Heat - Page 5
Questions
- What is the amount of heat energy associated with the reverse process?
- Why is water often used as a coolant?
- An object with a mass of #20 g# is dropped into #750 mL# of water at #0^@C#. If the object cools by #90 ^@C# and the water warms by #18 ^@C#, what is the specific heat of the material that the object is made of?
- When 1942 J of heat energy is added to 47.4 g of ethanol, #C_2H_6O#, the temperature increases by 16.7 °C. What is the molar heat capacity of #C_2H_6O#?
- An object with a mass of #7 kg#, temperature of #163 ^oC#, and a specific heat of #17 J/(kg*K)# is dropped into a container with #32 L # of water at #0^oC #. Does the water evaporate? If not, by how much does the water's temperature change?
- If a sample of chloroform is initially at 25°C, what is its final temperature if 1.5 kg of chloroform absorbs 1.0 kilojoules of heat, and the specific heat of chloroform is 960 J/kg C?
- An object with a mass of #12 kg#, temperature of #125 ^oC#, and a specific heat of #32 J/(kg*K)# is dropped into a container with #35 L # of water at #0^oC #. Does the water evaporate? If not, by how much does the water's temperature change?
- How many grams of water would require 2200 joules of heat to raise its temperature from 34°C to 100°C?
- How much heat is liberated by the combustion of 206 g of hydrogen? #DeltaH_(comb)# = -286 kJ/mol
- Dissolving some potassium bromide in 200cm3 of water leads to a decrease in temperature of 3oC. What will the heat released be?
- How can I calculate specific heat capacity of water?
- An object with a mass of #120 g# is dropped into #810 mL# of water at #0^@C#. If the object cools by #48 ^@C# and the water warms by #8 ^@C#, what is the specific heat of the material that the object is made of?
- How much heat is required to raise the temperature of 150g of iron 20c to 25c?(specific heat of iron =480j/kg.c)
- A 25 g piece of an unknown metal alloy at 150°C is dropped into an insulated container with 200 g of ice. How do you calculate the specific heat capacity of the metal, given that 9.0 g of ice melted?
- An object with a mass of #32 g# is dropped into #560 mL# of water at #0^@C#. If the object cools by #80 ^@C# and the water warms by #6 ^@C#, what is the specific heat of the material that the object is made of?
- An object with a mass of #16 kg#, temperature of #180 ^oC#, and a specific heat of #5 J/(kg*K)# is dropped into a container with #48 L # of water at #0^oC #. Does the water evaporate? If not, by how much does the water's temperature change?
- How much thermal energy is absorbed by 750 grams of water when its temperature increases from 15.4 C to 86.3°C?
- An object with a mass of #150 g# is dropped into #850 mL# of water at #0^@C#. If the object cools by #40 ^@C# and the water warms by #3 ^@C#, what is the specific heat of the material that the object is made of?
- Gold has a specific heat of 0.129 J/g °C. How many joules of heat energy are required to raise the temperature of 16 grams of gold from 23 °C to 94 °C?
- An object with a mass of #18 g# is dropped into #240 mL# of water at #0^@C#. If the object cools by #120 ^@C# and the water warms by #6 ^@C#, what is the specific heat of the material that the object is made of?