A body cools from 72 degrees to 60 degrees C in 10 minutes. How much time will it take to cool from 60 degrees C to 52 degrees C if the temperature of the surroundings is 36 degrees C?

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 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 6.22-kg piece of copper that is heated absorbs 728 kJ of energy.  If the copper starts at 20.5° C,…

A:

Q: A 30-kg child has a temperature of 39 °C. How much heat must be removed from the child’s body to…

A: The change in thermal energy is given by

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 woman finds the front windshield of her car covered with ice at -14.3 °C. The ice has a thickness…

A: Given, temperature of the ice in front windshield, T = -14.3 °C thickness of the ice, t = 4.86×10-4…

Q: How much heat is transferred in 9 minutes through a glass window of size 1.4 m by 1.3 m, if its…

A: Solution:

Q: The center span of a steel bridge is 1,401 meters long on a winter day when the temperature is -5 C.…

A: Given data:  Original Length (L) = 1401 meters Initial temperature (T0) = -5 C Final temperature…

Q: What is the heat capacity of a radiator system that uses 1.50 x 105J of heat to go from 25.0 ⁰C to…

A: Given that Heat used by radiator Q = 1.5 X 105 J

Q: Two substances are warmed from 0°C. Their temperatures are plotted as a function of the amount of…

A: The specific heat of a substance is the amount of energy required to raise the temperature of one…

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 much energy (in MJ) is needed to raise the temperature of 0.196 m3 of water from 17.2˚C to…

A: Given data: Volume (V) = 0.196 m3 Initial temperature (To) = 17. 2 °C Final temperature (T) = 81.4…

Q: What would be the rate of energy loss, in Watts, for a piece of asphalt that has an area of 2.80 m2…

A: Given data: The area is A=2.8 m2. Temperature is T=60°C.

Q: The temperature reading on this outdoor thermometer is in degreesFahrenheit. What is the temperature…

A: 1 small division=2°F The temperature shown here is 5 divisions after 40°F, So the temperature…

Q: A 0.500 kg aluminum pan on a stove is used to heat 0.250 liters of water from 20.0 C to 80.0 C. How…

A: Given: The volume of the water is 0.25 L. The mass of aluminum is 0.5 kg The initial temperature of…

Q: A beaker of water contains 175 mL of water starting at 27.4 °C. What will the temperature be if 39.3…

A: Given data: Mass (m) = 175 ml = 175 g Initial temperature (T0) = 27.4 °C Heat absorbed (Q) = 39.3 kJ…

Q: A bottle containing 6 kg of water at a temperature of 15°C is placed in a refrigerator where the…

A:

Q: In a warm room a naked resting person has a skin temperature of 33°C if the room temperature is 29°…

A:

Q: ries of energy to heat a small piece of aluminum from 100°F to 120°F. What is the mass of the piece…

A: GivenQ=2.7×103 calT1=100°FT2=120°F

Q: What is the ratio of specific heat of sand to the specific heat of water?

A: The specific heat of water is very high, and the specific heat of sand is low.

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 MJ) is needed to raise the temperature of 0.152 m3 of water from 20.9˚C to…

A:

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 500 gram cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat the…

A: Given:  mass, m = 500 g = 0.5 kg  T = 25 °C T'= 75 °C. c = 0.129 J/g°C  = 129 J/ kg°C.

Q: What is the specific heat of an object that weighs 15g and changes temperature from 30 degrees C to…

A:

Q: an 60 gram silver spoon at 21 degrees C is place in a cup of coffee at 95 degrees C. the specific…

A: Answer               218.4 cal

Q: A hot, just minted copper coin is placed in 100 gr of water to cool. The water temperature changes…

A: Given,mass of the water, mw = 100 gtemperature change of water, ∆Tw= 8 °Ctemperature change of coin,…

Q: An 55 gram silver spoon at 23 degrees C is place in a cup of coffee at 95 degrees C. The specific…

A: Data provided : Mass of spoon (m) = 55 gram Initial temperature (Ti) = 23 °C Specific heat of silver…

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: The temperature of a 100 g sample of aluminum is raised from 40 °C to 180°C when 1540 cal of heat is…

A:

Q: block of ice weighs 4.9N and has a temperature of -6℃. How much heat energy is required to convert…

A: The latent heat of fusion of ice is 33600 J/K The heat of vaporization of water is about 2,260 kJ/kg…

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: Some amount of heat energy is removed from a 5cm X 12cm X 37cm block of ice to cool from 0°C to…

A:

Q: it is 28f in new york at 10:00pm. the temperature is dropping 1.5f every hour what will be the…

A: The temperature at 10.00 pm is provided and the drop in temperature every hour is also provided, we…

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

A:

Q: a comfortable temperature is 75 degree f. what is this temperature, expressed in degrees kelvin

A:

Q: A container of hot liquid is placed in a freezer that is kept at a constant temperature of 20°F. The…

A: Using Newton's law of cooling we have, the rate of change will be directly proportional to y-20.…

Q: A wooden block has a mass of 0.200 kg, a specific heat of 710 J/(kg.degrees celcius), and is at a…

A: Thermal energy is defined as the energy contained within a system. Energy can be exchanged in the…

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: A bottle containing 6 kg of water at a temperature of 15°C is placed in a refrigerator where the…

A:

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: If the temperature is 5 degrees Celcius in the high desert with an altitude of 3500 meters. What is…

A:

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: How much heat is required to totally melt 6 kg of aluminum which is at 30°C

A: Given data: Mass of the aluminum m= 6 kg Temperature T=30°C

Calorimetry

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