A cup with 1.25 kg of ice is at -10 celsius is heated until all the ice melts. How much energy was added to the ice? (Lf=334kJ/kg  Cice=2 kJ/kg*c) c=celsius (answer: 443 kJ)

Q: The thermal energy of 0.900 mol of a substance is increased by 0.900 J.

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Q: The heating element of a 1500 Watt electric stove can reach temperatures of 845 °C when turned all…

A: Power of electric stove (P) = 1500 Watt Final temperature (T) = 845o C percentage of heat from the…

Q: How much heat is lost if 60 g of iron is cooled from 80 °C to 15 °C? The specific heat capacity of…

A: The heat lost is given by  H = m c (T' - T) where, m is the mass, c is the specific heat and T' - T…

Q: A change of 20 degrees Celsius is the same as a change of ________ Kelvin.

A: Given: The change in temperature on Celsius scale is 20oC.

Q: A coolant lowers the temperature in a steel engine weighing 16250 N and running at a temperature of…

A: The mass of the steel engine is,

Q: A person doesn't want to gain more weight. However, he decides to eat a meal of 10,000 Calories and…

A: Given Data The meal contains 10000 Cal=10000 Cal×4.19 J1 Cal=41900 J The person climbs a height of…

Q: In an experiment, 200 g of water is heated. The temperature increases by 3°C. The specific heat of…

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Q: How much heat (in J) is needed to raise the temperature of 9 kg of silver from 30°C to 890°C?

A: Given data: Mass of the silver (m) = 9 kg Need to determine the heat needed to raise the temperature…

Q: 2.01 kilograms of ice are at a temperature of 0.0 °C. The ice is in an insulated container and…

A: for melting the ice we need the heat if fusion  the formula for this is given by Q= mL​​​f we have…

Q: uired to raise the temperature of 4.1 kg of ice at -31.°C to water a

A: Given:- The mass of the ice m = 4.1 kg  The change in temperature T1 = -31 oC = -31+273 = 242 K  T2…

Q: The specific latent heat of fusion for gold is 1.10x10^6 J/kg: How much energy is required to melt…

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Q: 2kg of ice at -10°C is heated until has melted. how much heat energy has been used? Specific heat to…

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Q: If the heat of fusion of water is 3.4 x 102 J/g, the amount of heat energy required to change 15.0…

A: Given that, The heat of fusion of water, H=3.4×102 J/g We need to find the amount of heat energy…

Q: A piece of aluminum whose mass is 10 kg has a specific heat capacity of 900 J/kg×°C and is warmed by…

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Q: 4 kg of ice at 0◦C is converted to steam at 100◦C. How much heat is needed? The heat of fusion…

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Q: Andy has a bath and uses 1500g of water heated from 10°C to 40°C and with a specific heat capacity…

A: Write the given data. m=1500 g=1.5 kg∆T=40-10=30 °CC=4200 J/kg°C

Q: How many kilocalories of heat does an expenditure of 194 kJ produce?

A: Write a given value of this question. Q=194kJ

Q: How much energy (in calories) is released when 50.0 g of water is cooled from 25 °C to solid ice at…

A: Given data: Mass of water is, m=50.0 g=0.05 kg. Initial temperature is, T1=25∘C. Final temperature…

Q: How much will the temperature change if 5000J of heat is added to 1.0kg of sand?

A: Given data:  Heat added (Q) = 5000 J Mass (m) = 1.0 kg Required: Change in temperature (ΔT)

Q: A bulb delivers 33 W of radiant energy when its filament is at 1900 °C. If the temperature increases…

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Q: what is a change in temperature of 50° C equal to in Kelvin?

A: Given  temperature in centigrade =500 C

Q: How much heat must be removed when 50 grams of steam at 100°C Is condensed to form liquid water at…

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Q: A bulb delivers 40 W of radiant energy when its filament is at 2500°C. If the temperature increases…

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Q: How much heat energy is needed to warm 8.0 kg of ice at – 5.0°C to water at 20.0°C?

A: mass of ice (m) = 8 kg initial temperature = -5oC final temperature = 20o C latent heat of fusion of…

Q: A piece of metal at 100°C has its Celsius temperature doubled. By what factor does its kelvin…

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Q: What is the amount of energy required to raise the temperature of a 2.5 kg block of ice at -25°C to…

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Q: 4.5 kg of water at 33 °C is mixed with 4.5 kg of water at 49 °C in a well-insulated container.

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Q: How much energy is required to change a 0.600 kg ice cube from ice at -20.0 °C to water at 20.0 °C?…

A: To find the total heat we need to answer the question in three steps. We have to find the heat…

Q: The water equivalent of 5 kg of a substance is 1 kg. Find its heat capacity. 2184 J/C° 4186 J/C°…

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Q: If the air has a thermal energy of 4.5 x 10 J, what is the air temperature ?

A: Given, thermal energy, E = 4.5 x 10 J the air temperature, T=? Using formula: E=32kBTWhere,…

Q: A substance has a specific heat of 2.5 J/g°C. How energy will it take to raise the temperature of 6…

A: The heat is given by  H = m c (T' - T)  where, m is the mass c is the specific heat and T' - T is…

Q: A high jumper of mass 60kg consumes a meal of 3.00 x 10 ³ kcal prior to a jump. If 3.3% of the…

A: The gravitational potential energy of a mass m at a height h from the Earth's surface is defined…

Q: How much kilojoule (kJ) of heat is required to increase the temperature of a liquid from 13.2°C to…

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Q: 40.lf 83680 J of heat are required to raise the temperature of 4 kg of water by 5 °C, then the…

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Q: How many calories of heat are required to raise the temperature of 4 kg of water from 50°F to the…

A: Given data: Mass of the water, m=4 kg Initial temperature, T1=50oF = 50-32×59 oC = 10 oC Temperature…

Q: A bulb delivers 25 W of radiant energy when its filament is at 1500 °C . If the temperature…

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Q: Calculate the amount of heat (in kJ) needed to raise the temperature of 50.0g of water 20.0°C to…

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Q: How much heat is released if 4.00kg of steam cools from 150.0°C to 100°C? How much heat is released…

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Q: Calculate the heat needed to heat up a 6.0 kg copper from 15°C to 80°C. The specific heat capacity…

A: Mass of copper: m = 6.0 kg Initial temperature: Ti = 15°C Final Temperature: Tf = 80°C Specific heat…

Q: At room temperature, an oxygen molecule with mass of 5.31x10^-26kg typically has a kinetic energy of…

A:

Q: A person doesn't want to gain more weight. However, he decides to eat a meal of 10,000 Calories and…

A: given, person needs to burn , Q = 10000 Cal person burns all the calories by climbing 20 m high…

Q: At what temperature will the air in the oven have a thermal energy of 5.0 x 10 J?

A: Thermal energy of the air inside oven (E)=50 J Boltzmann's constant (k)=1.38×10-23 J/K

Q: for a system is 20 kJ. If 175 kJ of work was done on the system, how much heat was released?

A: GIVEN : Work done = + 175 kJ Change in internal energy ∆U = 20 Thermodynamics first law : ∆U=∆Q+W

Q: How much energy would have to be added to 519grams of water to heat it from 17.0°C to 84.0°C?…

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Q: How much heat is given up when 20 g of steam at 100 deg C is condensed and cooled to 20 deg C?

A: mass of steam = 20 g initial temperature = 100oC final temperature = 20oC

Q: One gram of ice at 0°C is placed on a container containing 2,000,000 cubic meters of water at 0°C.…

A: Given data: ice's mass m = 1 g  Initial temperature Ti = 0 oC final temperature Tf = 0 oC volume of…

Q: If we use 67 W of power to heat 148 g of water, how long will it take to raise the temperature of…

A: Power, P = 47 W Mass of water, m = 148 g = 0.148 kg Initial temperature, T1 = 15oC Final…

Q: Find the amount of energy required to raise the temperature of 1000 kg of seawater from 10°C to…

A: Given : m = 1000 kg T1 = 10°C T2 = 50°C c = 3900 J/kg.°C

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.