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: If 7.5 kg of ice at 0 degrees celcius is put into an icebox, how many joules of heat are absorbed…
A: The heat absorbed by the ice to melt into water is given by Q= m L…
Q: How much heat (in J) is needed to raise the temperature of 4 kg of silver from 32°C to 850°C?
A: The expression for heat required (Q), is given as, Q = m× C×∆T, where 'm' is the mass of the…
Q: The specific heat of steam at atmospheric pressure is 2,010 J/kg °C. Evaluate the energy required to…
A: Given : c = 2010 J/kg.°C m = 3.30 kg Ti = 110°C Tf = 132°C
Q: How much heat transfer is required to raise the temperature of 25 g of water from 44ºC to 85ºC?…
A: Given: Mass of water. m = 25 g = 0.025 kg Temperature, T1 = 44o = 44+273 = 317 K Temperature, T2 =…
Q: A crate of fruit with a mass of 32.5 kg and a specific heat capacity of 3650 J/(kg K) slides 8.80 m…
A:
Q: How much heat (in J) is needed to raise the temperature of 2 kg of silver from 22°C to 800°C?
A:
Q: How much heat transfer is required to raise the temperature of 75 g of water from 14ºC to 28ºC?…
A: Write the given values of this problem. m=75 g or 0.075 kgIntial temperature(Ti)=14°CFinal…
Q: In an experiment, 200 g of water is heated. The temperature increases by 3°C. The specific heat of…
A:
Q: How much energy does it take to raise 200 g of aluminum from 20 °C to 3000 °C?
A:
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: If 10 grams of 0 degree water is heated up to 20 degree’s, how many calories were transferred?
A: Given Mass of water (Mw) = 10 g at 0° C We have to heat up it by 20° C We know specific heat…
Q: How many kilocalories of heat does an expenditure of 699 kJ produce?
A: Heat = 699 kJ To find = Kilocalories
Q: 0.1 Kg of 4.0°C water is heated until its temperature is 37°C. If the specific heat of water is 4186…
A: Given Data : The mass of water is given as m = 0.1Kg. The temperature of the water before heating is…
Q: How many calories does an electric heater of 100 watts generate per second?
A:
Q: How many calories will a 298-pound athlete consume after running a distance of 458 yards in 3.2…
A: Given data:
Q: If the specific heat of water is 4186 J/kg C. If 20000 J are added to 2 kg of water at 20oC, what…
A: It is according to the equation, Q = ms(Tf -Ti) Where, Q: Heat added m: mass…
Q: A 69g block of metal has a specific heat of 1.29J. What will be the temperature of this metal to one…
A: Given :- mass of block m = 69 g = 0.069 kg specific heat C = 1.29 J heat energy Q = 114 J…
Q: How much heat must be absorbed by 275 grams of water to raise its temperature by 25˚C?
A: The mass of the water is m= 275 g = 0.275 kg. The raise in the temperature of water is ∆T=25°C.
Q: How much heat is necessary to change 30 g of water at 40°C into steam at 100° C?
A:
Q: The water in a pot has a mass of 225 g. The specific heat of water is 4.184 J/gºC. How much heat is…
A:
Q: How many joules are needed to change the temperature of 1 gram of water by 1°C?
A: Mass of water is 1g Temperature change is 1oC Specific heat capacity of water (s) is 4.2 J/g
Q: If you have 500 g of water at 25 degrees celcius and wish to heat it to 74 degrees Celsius, how much…
A:
Q: A 18-kg piece of aluminum (which has a specific heat of 900 J/kg.°C) is warmed so that its…
A: Specific heat capacity of a substance is defined as the heat required per unit mass to change the…
Q: How much heat must be removed when 50 grams of steam at 100°C Is condensed to form liquid water at…
A:
Q: How many joules of heat are needed to raise the temperature of 0.010 kg of aluminum from 22°C to…
A:
Q: What is the amount of energy required to raise the temperature of a 2.5 kg block of ice at -25°C to…
A:
Q: How much heat is necessary to raise 30 g of water at 10°C to 62°F?
A:
Q: How much heat is required to convert ice with a mass of 12.0g at an initial temperature of -10.0°C…
A: For heating ice from -10oC to 0oC : The heat required is Q1=mc∆TQ1=12(2.1)(0-(-10))Q1=252 J
Q: The number of grams of ice that can be melted by 1.5 g of 100oC steam is ______.
A: Given data The mass of steam is given as ms = 1.5 g. The temperature of the steam is given as Ts =…
Q: 40.lf 83680 J of heat are required to raise the temperature of 4 kg of water by 5 °C, then the…
A:
Q: How much energy (in MJ) is needed to raise the temperature of 0.235 m3 of water from 23.5˚C to…
A: Specific heat capacity : the amount of heat necessary to alter the heat content of exactly one gram…
Q: Calculate the amount of heat (in kJ) needed to raise the temperature of 50.0g of water 20.0°C to…
A:
Q: To what temperature will 7900 J of heat raise 2.5 kg of water that is initially at 16.0 ∘C? The…
A: Given:Heat transferred, Q = 7900 JSpecific heat of water, SW = 4186 J/kg °Cmass, m = 2.5…
Q: A piece of steel expands 10 cm when it is heated from 20 to 40 degrees C. How much would it expand…
A:
Q: If 25 kJ is necessary to raise the temperature of a block from 25C to 30C, how much heat is…
A:
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: The water equivalent of 5 kg of a substance is 1 kg. By how much will its temperature change if 7550…
A:
Q: What is the amount of heat it generates in a minute?
A: according to joules heat law. heat generated in conductor H = i2Rt where i = amount of current…
Q: How much heat is released by a system when 159 J of work is done on it to decrease its energy to 67…
A: We have change in internal energy dU=-67 J (Negative because decrease is mentioned) due to work done…
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: The energy stored in a foot of snow on a steel roof is
A: NOTE: The question must be (on a steep roof) instead of (on a steel roof) To find out which type 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:
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: If we use 67 W of power to heat 148 g of water, how long will it take to raise the temperature of…
A: Given: mass=148g =0.148 Kg Power=67W Ti= 15 °C Tf=25 °C…
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…
How many kilocalories of heat does an expenditure of 194 kJ produce?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0C is 1.244 kg/m3.)At 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?Convert the following to equivalent temperatures on the Celsius and Kelvin scales: (a) the normal human body temperature, 98.6F; (b) the air temperature on a cold day, 5.00F.
- Object A is placed in thermal contact with a very large object B of unknown temperature. Objects A and B are allowed to reach thermal equilibrium; object Bs temperature does not change due to its comparative size. Object A is removed from thermal contact with B and placed in thermal contact with another object C at a temperature of 40C. Objects A and C are of comparable size. The temperature of C is observed to be unchanged. What is the temperature of object B?A ceramic container used for melting metals (called a crucible) contains 1.30 kg of a molten metal. The liquid metal cools until it reaches its melting point of 1,749°C. A scientist then measures that 2.99 ✕ 104 J of heat is transferred out of the metal before it completely solidifies. What is the latent heat of fusion of this metal, in J/g? (Be careful with units!)When it rains, water vapor in the air condenses into liquid water, and energy is released. (a) How much energy is released when 0.0356 m (1.40 inch) of rain falls over an area of 2.59×106 m² (one square mile)? (b) If the average energy needed to heat one home for a year is 1.50x10¹1 J, how many homes could be heated for a year with the energy determined in part (a)? (a) Number i (b) Number 1 Units Units
- If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?. Hint: To get the ΔT (Change in temperature), get the difference between final temperature (Tf) and initial temperature (Ti). [ΔT = Tf – Ti ]Suppose 1,856 J of energy are transferred to a block of mass 4.1 kg and specific heat 639 J/(kg-C°). Calculate the temperature change in Celsius degrees.How much heat is absorbed by 2.50 x 102 g of water when it is heated from 10 ◦C to 85 ◦C?ANSWER: 7.8X10^4 J A 38 kg block of lead is heated from -26 ◦C to 180 ◦C. How much heat does it absorb during the heating? ANSWER: 1x10^6 J
- Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg mostly in the palms and fingers. Your answer must have three significant figures and the temperature change in centigrade.You have 54 g of steam at 100°C. How much heat must be removed to change it to 54 g of water at 20°C? The specific heat of water is 4180 J/kg -° C and its latent heat of vaporization is 2.26 x 106 J/kg. Answer in units of J.When 345 g of water at 35.0 °C and 295 g of water at 63.0 °C are added together in a calorimeter, the temperature of the mixture becomes 46.9 °C. If the specific heat capacity of water is 4.18 J/g °C, how many kilojoules of energy are absorbed by the calorimeter?