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Use the equation for specific heat: energy = mass x (temperature difference) x (specific heat). Replace the numbers you know, and solve for mass. Since it seems that the specific heat is specified per gram, you'll initially get the mass per gram. Converting that to kilograms is quite easy.
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-- dollars -- weeks -- kilograms -- degrees (of temperature) -- pages -- watts -- decibels -- joules -- lumens
How many calories are required to increase the temperature of 13g of alcohol from 11 celsius to 23 celsius?
2.460 is the specific heat of ethyl alcohol in J/gC, so I will find joules and then convert to calories. q(joules) = mass*specific heat*change in temp. q = (13 g alcohol )(2.460 J/gC)(23 C - 11 C) = 383.76 joules (1 calorie/4.184 joules) = 92 calories ------------------
What is the quantity of heat in joules needed to raise the temperature of 40.0g of Al from 25 degrees Celsius to 50 degrees Celsius?
E = mass x specific heat x Δ°T Δ°T = new temperature - original temperature where Δ°T is equal to temperature change (Celsius in this case). The specific heat of Al is 0.900 J/g°C. Before we proceed to find the quantity of heat in joules, we must first find the temperature change. To calculate the temperature change, we must subtract the original temperature from the new temperature. Δ°T = 50°C - 25°C = 25°C In order to find the quantity of heat (joules), we must multiply mass, specific heat, and the temperature change (calculated above). E = 40.0g x 0.900 J/g°C x 25°C = 900 Joules or 9.0 x 102 Joules
How many joules of energy are required to raise the temperature of 20g of aluminum from 10 degrees C to 15 degrees C?
Heat energy Q = mass x specific heat capacity x temperature change. Q = m*c*delta T Q = Joules m = kg c (aluminum) = 895.8 J/kg delta T = degr.C temp. change Answer: Q = (20/1000) x 895.8 x 5 = 89.58 Joules (Specific heat capacity of aluminum is obtained by multiplying its specific heat of 0.214 with c of water which is 4186 J/kg = 0.214 x 4186 = 895.8 J/kg).
How much energy does it take to heat 1 kg of water from 33 deg F to 34 deg F?
The energy required to raise the temperature of water depends on the atmospheric pressure as well as the starting temperature. At a pressure of one atmosphere, the amount of energy required to raise the temperature of water from 0 deg C to 100 deg C (32 to 212 deg F) is 4.19 joules per gram. At 4 deg C, (39.2 deg F) it is approx 4.204 joules per gram per deg C. That is 4.204/1.8 = 2.33555... recurring joules per gram per deg F and so, for a kilogram, the energy required is 2335.55... joules.
How many kilojoules of energy are necessary to raise the temperature of 3 kilograms of cast iron from 30 degrees celsius to 120 degrees celsius?
I will use this formula. Some conversion will be required. ( I only know specific heat iron in J/gC ) q(Joules) = mass * specific heat * change in temperature Celsius 3 kilograms cast iron = 3000 grams q = (3000 g)(0.46 J/gC)(120 C - 30 C) = 124200 Joules (1 kilojoule/1000 joules) = 124.2 kilojoules of energy needed ===========================
How many calories are required to raise the temperature of 150 g sample of gold from 25 Celsius to 175 Celsius?
I will use this formula, the convert. q( in Joules ) = mass * specific heat Au * change in temp. q = nCT q = (150 grams)(0.129 J/gC)(175 C - 25 C) = 2902.5 Joules Now, 1 calorie = 4.184 Joules 2902.5 Joules (1 calorie/4.184 Joules) 694 calories required
How many joules would be required to heat 0.5kg of aluminum?
The specific heat capacity of aluminum is 0.897 J/g°C. To calculate the energy required to heat 0.5kg of aluminum by a certain temperature change, you would use the formula: Energy = mass x specific heat capacity x temperature change If you have the temperature change, you can plug the values into the formula to find the total energy in joules.
How many kilo joules are need to raise the temperature 17 Celsius to 34 Celsius?
To calculate the energy required, you can use the formula: Q = mcΔT Where Q is the energy in joules, m is the mass in grams, c is the specific heat capacity, and ΔT is the change in temperature in Celsius. Given the temperature change is from 17°C to 34°C and you have the mass and specific heat capacity, you can calculate the energy required in kilojoules.
How much energy is required to raise water temp 1 degree Celsius?
The amount of energy required to raise the temperature of water by 1 degree Celsius is known as its specific heat capacity. For water, the specific heat capacity is 4.18 Joules/gram°C. This means that it takes 4.18 Joules of energy to raise the temperature of 1 gram of water by 1 degree Celsius.
What is the quantity of heat in joules or calories required to raise the temperature of 1 gram of a substance 1C?
The quantity of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius is defined as the specific heat capacity of that substance. It is measured in joules per gram degree Celsius (J/g°C) or in calories per gram degree Celsius (cal/g°C).
What is the substances specific heat?
Specific heat is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. Each substance has its own specific heat capacity, which is a physical property unique to that material. It is typically measured in joules per gram per degree Celsius (J/g°C) or in joules per kilogram per degree Celsius (J/kg°C).
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.
How much energy does it take to raise the temperature of 10.0 of water by 25.0 in Joules?
To calculate the energy required to raise the temperature of water, you can use the formula: energy = mass x specific heat capacity x temperature change. The specific heat capacity of water is approximately 4.18 J/g°C. Plugging in the values, the energy required would be 10.0 g x 4.18 J/g°C x 25.0°C = 1045 Joules.
How many joules of heat required to raise the temperature of 25 grams of h2o from 21 degrees Celsius to 35.5 degrees?
The specific heat capacity of water is 4.184 J/g°C. The change in temperature is 35.5°C - 21°C = 14.5°C. Using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature, you can calculate that the heat required is approximately 1554.7 joules.
How many joules does it take to raise temperature from 30 degrees Celsius to 45 degrees Celsius?
To raise the temperature of a substance, you need to calculate the heat energy using the specific heat capacity of the substance. Without knowing the specific heat capacity of the substance in question, it's not possible to determine the exact amount of energy required to raise the temperature from 30 to 45 degrees Celsius.
How many joules of heat are required to heat 69 g of lead from 25.5 degree Celsius to 85.6 degree Celsius?
The specific heat capacity of lead is approximately 0.128 J/g°C. The temperature change is 85.6°C - 25.5°C = 60.1°C. Using the formula Q = mass x specific heat x temperature change, the heat required is 69g x 0.128 J/g°C x 60.1°C = 530.88 Joules.
