0
How much heat must be removed from a 200 g block of copper to lower its temperature from 150 celsius to 30 celsius?
0.385 Joules/Gram Celsius is the specific heat of copper. So,
q(Joules) = mass * specific heat * change in temperature
q = (200 g Cu)(0.385 J/gC)(30 C - 150 C)
= - 9240 Joules
-------------------------amount of heat dissipation ( answer can be positive )
The specific heat capacity of copper is 0.385 J/g°C. To calculate the heat removed, use the formula: Q = m * c * ΔT, where Q is the heat removed, m is the mass (200g), c is the specific heat capacity (0.385 J/g°C), and ΔT is the change in temperature (150°C - 30°C = 120°C). Plugging in the values, you get Q = 200g * 0.385 J/g°C * 120°C. Solve to find the heat removed.
Add your answer:
Earn +20 pts
What is the final temperature if 200 Joule of heat is removed from 50N block of ice initially at 25 degrees Celsius?
The final temperature of the ice block can be calculated using the formula: Q = mcΔT, where Q is the heat removed, m is the mass of the ice block, c is the specific heat capacity of ice, and ΔT is the change in temperature. Given the data, you can find the final temperature of the ice block.
A block of ice at 0 degree celsius is placed in a room whose temperature is also 0 degree celsiuspredict and explain what will happen?
The block of ice will remain stable and maintain its temperature of 0 degrees Celsius as long as the room temperature is also 0 degrees Celsius. Both will eventually reach thermal equilibrium, but there will be no change in state or temperature of the ice as it melts since the room temperature is not warmer than the ice.
Why does an iron block displaces more water than that of acopper block?
Iron is denser than copper, so an iron block will displace more water than a copper block of equal volume. This is due to Archimedes' principle, which states that the buoyant force acting on an object immersed in fluid is equal to the weight of the fluid displaced by the object. Since iron is denser, it displaces more water to create an upward buoyant force.
A 55 g aluminum block initially at 27.5 Celsius degrees absorbs 725J of heat what is the final temperature of the aluminuim?
Using the specific heat capacity of aluminum (0.897 J/g°C), you can calculate the change in temperature using the formula Q = mcΔT, where Q is the heat absorbed (725J), m is the mass of aluminum block (55g), c is the specific heat capacity, and ΔT is the change in temperature. Rearranging the formula to solve for ΔT and substituting the values, you can then find the final temperature by adding the change in temperature to the initial temperature (27.5°C). Calculate and the final temperature of the aluminum block will be the sum of the initial temperature and the change in temperature.
Why does polystyrene feel warmer than a copper block even though both are in the same room temperature?
Polystyrene is a poor conductor of heat compared to copper, leading to lower heat transfer. When you touch polystyrene, less heat is drawn away from your skin, giving the sensation of warmth. Copper, being a good conductor, quickly conducts heat away from your skin, making it feel cooler.
What is the final temperature if 200 Joule of heat is removed from 50N block of ice initially at 25 degrees Celsius?
The final temperature of the ice block can be calculated using the formula: Q = mcΔT, where Q is the heat removed, m is the mass of the ice block, c is the specific heat capacity of ice, and ΔT is the change in temperature. Given the data, you can find the final temperature of the ice block.
A block of ice at 0 degree celsius is placed in a room whose temperature is also 0 degree celsiuspredict and explain what will happen?
The block of ice will remain stable and maintain its temperature of 0 degrees Celsius as long as the room temperature is also 0 degrees Celsius. Both will eventually reach thermal equilibrium, but there will be no change in state or temperature of the ice as it melts since the room temperature is not warmer than the ice.
A calorimeter contains 0.750 kilogram of liquid water at 17.0 degrees C. A 0.0580 kilogram block of copper at 98.0 degrees C is placed in the water. What is the final temperature of the system?
The heat lost by the copper block equals the heat gained by the water and calorimeter. Using the heat equation, q=mcΔT, where q is the heat, m is the mass, c is the specific heat, and ΔT is the change in temperature, you can calculate the final temperature of the system as 26.2 degrees Celsius.
Which statements are true about a block of ice at -10 degrees Celsius as you continue to apply heat?
Thre temperature of the block of ice increases until you reach 0 degrees C when the block of ice begins to melt.
Is D block element copper?
Yes, copper is a d-block element as it belongs to Group 11 in the periodic table, also known as the transition metals group. Copper has a partially filled d orbital in its electron configuration, which classifies it as a d-block element.
Some small aluminium rivets of total mass 170g and 100 degrees are poured into a hole in a large block of ice at 0 degrees all the ice does not melt what is the final temperature of the rivets?
The final temperature of the rivets will be the melting point of ice (0 degrees Celsius) because the heat gained by the rivets (from their initial temperature of 100 degrees Celsius) will be used to melt the ice. Once all the ice is melted, the temperature will stabilize at 0 degrees Celsius.
Can copper block magnetism?
No, copper cannot block magnetism. It is not a magnetic material, so it will not interfere with magnetic fields or block them.
Why is copper good in circuits?
Copper is the best conductor of electricity. It is in the d block.
What will be the equilibrium temperature when a 245g block of copper at 285C is placed in a 145g aluminum calorimetery cup with 825g of water at 12C?
To find the equilibrium temperature, we can use the principle of conservation of energy. The total heat lost by the copper block as it cools down should be equal to the total heat gained by the aluminum calorimeter cup and the water as they warm up. This can be calculated using the formula: mcΔT = mcΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature. Once you solve this equation, you can find the equilibrium temperature at which heat transfer is balanced.
Temperature of the moon?
The temperature on the moon varies from -233 Celsius (-387 Fahrenheit) at night to 123 Celsius (253 Fahrenheit) during the day. Because the moon has no atmosphere to block some of the sun's rays or to help trap heat, its temperature varies greatly between day and night.
Why does iron block displaces more water than a copper block of the same weight?
Iron is denser than copper, so a block of iron will displace more water than a block of copper of the same weight because the iron block takes up less space for the same mass. This means that the iron block will sink deeper into the water, displacing more water.
If the temperature outside is 3 degrees celsius and there is a steel block what will the block's temperature be after one hour if there is a wind chill factor of -20 degrees celsius?
23
