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What is the change in thermal energy of the air when it warms from 24 and degC to 31 and degC?
The change in thermal energy can be calculated using the formula: ( Q = mc\Delta T ), where ( Q ) is the change in thermal energy, ( m ) is the mass of the air, ( c ) is the specific heat capacity of air, and ( \Delta T ) is the change in temperature. The specific heat capacity of air is approximately 1000 J/kg°C. Assuming the mass is 1 kg, the change in thermal energy would be ( Q = 1kg \times 1000 J/kg°C \times 7°C = 7000 J ).
What else can I help you with?
How does the thermal energy of an object change when its temperature increases?
Thermal energy is measured in calories. All substances have a property called the specific heat capacity, which means the number of calories it takes to heat 1 gram or 1 Kgram of the substance by 1 degC. (If you use Kg instead of g, you get kilocalories).
How much energy in joules is released when 17 kilograms of granite is cooled from 45 and degC to 21 and degC?
The specific heat capacity of granite is approximately 790 J/kg°C. To find the energy released, you can use the formula Q = mcΔT, where Q is the energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Plugging in the values, the energy released would be (17 kg) * (790 J/kg°C) * (45°C - 21°C).
How much energy is required to raise the temperature of 3 kg of aluminum from 18 and degc to 23 and degc?
The specific heat capacity of aluminum is 0.903 J/g°C. To calculate the energy required, use the formula: Energy = mass x specific heat capacity x temperature change. Convert 3 kg to grams (3000g) and calculate the energy required: 3000g x 0.903 J/g°C x (23°C - 18°C) = 13554 J or 13.5 kJ.
What is a device that can convert thermal energy to Light energy?
Any body that gets hot enough will radiate light. The sun for example behaves like a black body at about 6000 degC, but that is not a sensible or economical process to copy for artificial light, which we can make using electrical energy. The filament in an incandescent light bulb is producing light because it is at a high temperature in a suitable gas, but there it is converting electrical energy not thermal. To convert thermal energy directly to light, you only have to think of a candle, there the hot flame is producing the light. This is refined in the old fashioned oil lamp. I recall these being used in rural areas before electricity was laid on. There is a reservoir for the burning oil, a pure form of kerosene, a wick and a mantle which gets very hot and radiates the light. A modern version used for camping has a small butane container attached to provide the thermal energy input to the flame and mantle.
If the sand you ran across has a specific-heat capacity of 835 J(kg and degC) how much energy must be added to a 2-kilogram pile of it to increase its temperature from 40 and degC to 50 and degC Show?
The amount of energy needed to increase the temperature of a substance can be calculated using the formula: E = mcΔT, where E is the energy, m is the mass (2 kg), c is the specific heat capacity (835 J/kg°C), and ΔT is the change in temperature (50°C - 40°C = 10°C). Plugging in the values: E = 2 kg * 835 J/kg°C * 10°C = 16700 J. Therefore, 16,700 J of energy must be added to the 2-kg pile of sand to increase its temperature from 40°C to 50°C.
How does the thermal energy of an object change when its temperature increases?
Thermal energy is measured in calories. All substances have a property called the specific heat capacity, which means the number of calories it takes to heat 1 gram or 1 Kgram of the substance by 1 degC. (If you use Kg instead of g, you get kilocalories).
The specific heat of a certain type of cooking oil is 1.75 cal(g and middot and degC). How much heat energy is needed to raise the temperature of 2.40 kg of this oil from 23 and degC to 191 and degC?
The change in temperature is ΔT = 191°C - 23°C = 168°C. The heat energy Q required is given by the formula Q = mcΔT, where m is the mass, c is the specific heat, and ΔT is the temperature change. Plugging in the values: Q = 2.4 kg * 1.75 cal/(g°C) * 168°C = 7056 cal = 7.056 kcal.
How much energy in joules is released when 17 kilograms of granite is cooled from 45 and degC to 21 and degC?
The specific heat capacity of granite is approximately 790 J/kg°C. To find the energy released, you can use the formula Q = mcΔT, where Q is the energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Plugging in the values, the energy released would be (17 kg) * (790 J/kg°C) * (45°C - 21°C).
What is the change in entropy (S) when an icicle melts at 2 and degC?
Delta S= Delta H
How much energy is required to raise the temperature of 3 kg of aluminum from 18 and degc to 23 and degc?
The specific heat capacity of aluminum is 0.903 J/g°C. To calculate the energy required, use the formula: Energy = mass x specific heat capacity x temperature change. Convert 3 kg to grams (3000g) and calculate the energy required: 3000g x 0.903 J/g°C x (23°C - 18°C) = 13554 J or 13.5 kJ.
How many calories will it take to raise the temperature of a 36 g gold chain from 20 and degC to 125 and degC?
To calculate the energy required to raise the temperature, you can use the formula: energy = mass x specific heat capacity x temperature change. The specific heat capacity of gold is 0.129 J/g°C. Plugging in the values for mass, specific heat capacity, and temperature change, the energy required would be approximately 364.86 Joules. To convert Joules to calories, divide by 4.184 to get approximately 87.2 calories needed to raise the temperature of the gold chain.
What is a device that can convert thermal energy to Light energy?
Any body that gets hot enough will radiate light. The sun for example behaves like a black body at about 6000 degC, but that is not a sensible or economical process to copy for artificial light, which we can make using electrical energy. The filament in an incandescent light bulb is producing light because it is at a high temperature in a suitable gas, but there it is converting electrical energy not thermal. To convert thermal energy directly to light, you only have to think of a candle, there the hot flame is producing the light. This is refined in the old fashioned oil lamp. I recall these being used in rural areas before electricity was laid on. There is a reservoir for the burning oil, a pure form of kerosene, a wick and a mantle which gets very hot and radiates the light. A modern version used for camping has a small butane container attached to provide the thermal energy input to the flame and mantle.
The specific heat of gold is 0.031 caloriesgram and degC. If 10.0 grams of gold were heated and the temperature of the sample changed by 20.0 and degC how many calories of heat energy were absorbed by?
The needed heat is:Q = 10 x 20 x 0,031 = 6,2 calories
If the sand you ran across has a specific-heat capacity of 835 J(kg and degC) how much energy must be added to a 2-kilogram pile of it to increase its temperature from 40 and degC to 50 and degC Show?
The amount of energy needed to increase the temperature of a substance can be calculated using the formula: E = mcΔT, where E is the energy, m is the mass (2 kg), c is the specific heat capacity (835 J/kg°C), and ΔT is the change in temperature (50°C - 40°C = 10°C). Plugging in the values: E = 2 kg * 835 J/kg°C * 10°C = 16700 J. Therefore, 16,700 J of energy must be added to the 2-kg pile of sand to increase its temperature from 40°C to 50°C.
Can two objects have the same temperature but different amounts of thermal energy?
Because energy is related to the Atomic Mass of the substance (1/2 mv^2 and all that). So, at the same temperature a more massive substance has a greater thermal energy.
What water does at 100 and degc?
It boils
What would happen to a sample of water at 30 and degC if it is heated until the temperature reaches 120 and degC?
Water is transformed in vapors.
