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How much heat energy would be required to bring a 15 kg block of ice from -20 degrees Celsius to steam at 120 degrees Celsius?
Wiki User
∙ 12y ago
46389000 j
Wiki User
∙ 12y ago
To bring the ice block to 0 degrees Celsius, you would need 150,000 Joules (Q = mcΔT). To melt the ice at 0 degrees Celsius, you would need 3,375,000 Joules (Q = mLf). Heating the water from 0 to 100 degrees Celsius would require 1,500,000 Joules (Q = mcΔT). Turning the water to steam at 100 degrees Celsius would need 10,500,000 Joules (Q = mLv). Finally, heating the steam to 120 degrees Celsius would require 600,000 Joules (Q = mcΔT). In total, you would need 15,125,000 Joules of heat energy.
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Is the average kinetic energy of particle in a block of ice at 0 degrees the same as or different from the average kinetic energy of the particle in a gas-filles container at 0 degrees Celsius?
The average kinetic energy of particles in a gas-filled container at 0 degrees Celsius is higher than in a block of ice at the same temperature. This is because the particles in a gas have more freedom of movement and therefore higher kinetic energy compared to the more restricted motion of particles in a solid like ice.
Does a block of ice contain heat energy?
Yes, a block of ice contains heat energy, even though the temperature may be below freezing. Heat energy exists in the form of latent heat, as the ice would need to absorb heat to melt and change phase into liquid water.
A 38 kg block of lead is heated from 26 degrees Celsius to 180 degrees Celsius how much heat energy does the block of lead absorb to increase its temperature this much?
The specific heat capacity of lead is 0.128 J/g°C. First, calculate the mass in grams (38 kg = 38000 g). Then, use the formula Q = mc∆T, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ∆T is the change in temperature. Plug in the values to find the heat energy absorbed.
What units does a thermometer measure?
A thermometer measures thermal energy (heat energy) by measuring temperature in celsius, kelvin, or Fahrenheit degrees. Note that temperature can be used as an indicator of thermal energy, but it is not a direct measure of it. A masonry brick at a given temperature has more thermal energy than a block of pine (wood) the same size at the same temperature.
How cold for how long will it take for just water to freeze in a car?
Water will freeze in a car at a temperature below 32°F (0°C). The exact time it takes for water to freeze will depend on factors such as the initial temperature of the water, the surrounding temperature inside the car, and airflow. In general, it can take a few hours for water to freeze in a car under cold enough conditions.
Two identical blocks of iron one at 10 degrees celsius and the other at 20 degrees celsius are put in contact suppose the cooler block cools to 5 degrees celsius and the warmer block warms to 25?
Violation of 2nd Law
Is the average kinetic energy of particle in a block of ice at 0 degrees the same as or different from the average kinetic energy of the particle in a gas-filles container at 0 degrees Celsius?
The average kinetic energy of particles in a gas-filled container at 0 degrees Celsius is higher than in a block of ice at the same temperature. This is because the particles in a gas have more freedom of movement and therefore higher kinetic energy compared to the more restricted motion of particles in a solid like ice.
How much heat would it take to melt a kg block of ice?
It would take approximately 334,000 Joules of heat to melt a 1 kg block of ice at 0 degrees Celsius. This energy is required to break the bonds holding the ice molecules together and transition from a solid to a liquid state, known as the heat of fusion.
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.
How much energy must be removed from a 200 G block of ice to cool it from 0 degrees to -30 degrees?
To calculate the energy required, you can use the specific heat capacity of ice, which is 2.09 J/g°C. First, calculate the energy needed to cool the ice from 0°C to its freezing point at -30°C. The temperature change is 30°C. Therefore, the energy required = 200 g * 30°C * 2.09 J/g°C.
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 38 kg block of lead is heated from -26 degrees Celsius to 180 degrees Celsius. How much heat energy does the block of lead absorb to increase its temperature this much?
The specific heat capacity of lead is 0.128 J/g°C. First, calculate the change in temperature (180°C - (-26°C) = 206°C). Then, calculate the heat energy using the formula Q = m * c * ΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. So, Q = 38 kg * 0.128 J/g°C * 206°C. This equals approximately 991.36 kJ of heat energy absorbed.
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.
Does a block of ice contain heat energy?
Yes, a block of ice contains heat energy, even though the temperature may be below freezing. Heat energy exists in the form of latent heat, as the ice would need to absorb heat to melt and change phase into liquid water.
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.
How much heat energy would it take to melt a 20 kg block of lead that was at 24 degrees Celsius?
The specific heat capacity of lead is 0.128 J/g°C. To calculate the heat energy required to melt the lead, you would first need to raise the temperature of the lead from 24°C to its melting point of 327.5°C using the equation Q = mcΔT. Then, once the lead is at its melting point, you would calculate the heat energy required to melt the lead using the equation Q = mL, where L is the heat of fusion for lead which is 23.5 kJ/kg.
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?
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