The heat required to raise the temperature of a large cup of water(for coffee) from room temperature to boiling is approximately 100kj. Express this quantity of heat in kilocalories. Show calculations.

Q: A student is investigating the boiling and freezing point of a liquid, He observes

A: According to the question -   Given -   1) Upon attaining the boiling point, the liquid Begins to…

Q: When a 100-gram cylinder of copper, initially at 100° C, is placed in 100 grams of household…

A:

Q: After reading the following scenario, explain and diagram the transfer of energy. You must label the…

A: A question based on exotherrmic or endothermic nature of reaction, which is to be accomplished.

Q: How many calories of energy does it take to heat 17.10 grams of water from 30.3 °C to 85.1 °C? Note:…

A: •Firstly discuss about SPECIFIC HEAT:-Specific heat is required energy in calories to increase…

Q: Which of the following is the best example of chemical energy being converted into thermal energy? O…

A: Option A: The sun on nuclear fusion i.e. when the Hydrogen nuclei fuse to form one helium atom the…

Q: A 92.9-g piece of a metal is heated to 178.0 °C, and then cooled to 29.7 °C by removing 14052.6 J of…

A: Given: Mass of metal=92.9 g Temperature change, ∆T=(29.7-178.0)°C=-148.3 °C The heat released q…

Q: How much energy does it take to heat a cup of water (242 g) from room temperature (21.0°C) to its…

A: Step 1) Specific heat says that how much heat is required to raise that temperature 1 g of a sample…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Given,  The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7…

Q: 100 grams of water is measured to have an initial temperature of 28 degrees Celsius. An unknown…

A:

Q: thermometer A 52.8 g sample of quartz is put into a calorimeter (see sketch at right) that contains…

A: Given information:Mass of quartz = 52.8 gMass of water = 250.0 gInitial temperature of a quartz =…

Q: thermometer A 50.8 g sample of aluminum is put into a calorimeter (see sketch at right) that…

A: Given:  Mass of Aluminium = 50.8 gm  Mass of water = 300 gm  Initial temperature of water = 21.0°C…

Q: A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celcius is added to 50.00 grams of…

A:

Q: thermometer A 57.7 g sample of glass is put into a calorimeter (see sketch at right) that contains…

A: Heat released by the sample of glass is equal to heat absorbed by water  Heat released by glass  =…

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: Use the concept of heat lost by metal = heat gained by water to calculate specific heat of the…

Q: How much heat in kJ must be added to 175 g of w

A: Specific heat capacity of any material (represented as c) is amount of heat required to raise 1 gram…

Q: How much heat in joules is needed to raise the temperature of 1.0 L of water from 0 Celsius to 100…

A:

Q: A 25.64g sample of solid was heated in a test tube to 100 degrees Celcius in boiling water and…

A: Given:Mass of sample = 25.64gT = 100o CMass of water = 50 gTemperature increased from 25.10 degrees…

Q: In the laboratory a student finds that it takes 84.0 joules to increase the temperature of 10.9…

A:

Q: An irregular lump of an unknown metal has a measured density of 5.61 g/mL. The metal is heated to a…

A: Density of metal = 5.61 g/mL

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: we need to calculate the specific heat of the metal

Q: how many calories are required  to raise  the temperature of (2.6x10^2)h of water from 42.0celsius…

A:

Q: The large specific heat of water limits large fluctuations in temperature near bodies of water…

A: True or False !

Q: In the laboratory a student finds that it takes 34.3 Joules to increase the temperature of 13.7…

A:

Q: When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from…

A:

Q: a 16.7 g polystyrene foam cup containing 31.0 mL coffee changes in temperature from 18 degrees…

A: Given: Mass of polystyrene foam cup = 16.7 g Volume of coffee = 31 mL = 31 x 10-6 m3 Change in…

Q: A piece of metal weighing 80.10 g was heated to 99.3°C and then put into 41.55 g of water (initially…

A: Given: The mass of metal, (mm)=80.1 g. The mass of water, (mw)=41.55 g. The initial temperature of…

Q: 4) Calcium chloride (CaCl2) emits heat when dissolved in water. CaCl2e) → Ca- 2+ (aq) + 2Cl (aq) ΔΗ.…

A: First of all you need to find the amount of heat required to raise the temperature of water. For…

Q: A piece of metal weighing 83.60 g was heated to 99.6°C and then put into 41.90 g of water (initially…

A: Introduction: Specific heat: The quantity of heat required by a 1mole of substance to raise the…

Q: Calculate the quantity of heat required to raise the temperature of 20.0 g of water from 19.1 °C to…

A:

Q: How much heat is needed to heat 25.00 grams water from 10.00 degrees C to 25.00 degrees C

A: Specific heat capacity (s) :- The amount of heat required to increase the temperature of one gram ia…

Q: 4. If the Law of Conservation of Energy states that energy is neither be created nor destroyed, but…

A: According to law of conservation of energy, energy can neither be created nor destroyed, but can…

Q: In addition to calculating specific heat capacities, some calorimeters can be used to determine how…

A: A) The number of Joules in 1 calorie = 4.184 J.

Q: The amount of energy required to heat water for a 10-minute shower (50 gallons) is 2.2125 kJ. How…

A: Given   Amount of water = 50 gallon  Time = 10 minutes  Energy required = 2.2125 kJ

Q: chemistry professor has a cup of coffee containing 50.0 mL of room temperature coffee at 25.0 °C.…

A: V1= 50ml and density = 1g/ml So mass(m1)= density * volume                   m1 =   (1g/ml)*(50ml)…

Q: Consider the following specific heats of metals in the table below. If the same amount of heat is…

A:

Q: The nutritional calorie (Calorie) is equivalent to 1 kilocalorie. One pound of body fat is…

A: Given quantity of energy,       4.10 ×103 Calories

Q: You pour a cup of tea that has a volume of 128 mL and is initially 92.1 °C. You place a stainless…

A: Mass of coffee = Density of coffee × Volume of coffee. Mass of coffee = 128 g (density of coffee =…

Q: please provide a clear, step by step answer: A customer orders 200ml of Sumatran coffee at…

A: A customer orders 200ml of Sumatran coffee at precisely 60.0°C. You then need to add enough milk at…

Q: How much heat, in kJ, is absorbed by 50.0g of water if the temperature changes from 298K to 357K?…

A: Given, The amount of heat absorbed by 50.0g of water to increase temperature from 298 K to 357 K is:

Q: A piece of metal weighing 73.10 g was heated to 99.3°C and then put into 30.00 g of water (initially…

A: The given data : The mass of metal = 73.10 g The temperature of metal = 99.3°C The mass of water =…

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: Given, For metal  Mass of metal (mmetal) = 128.1 g Specific heat of metal (Cpmetal) = ? Initial…

Q: Calculate the final temperature if a 500.0-gram piece of steel at 1200°C is dropped into 100.0 kg of…

A: We have given that  Calculate the final temperature if a 500.0-gram piece of steel at 1200°C is…

Q: Show how to determine and then calculate the final temperature of a 195 g copper pan when 5925…

A: To determine the final temperature of a copper pan. Take the copper pan in hot water. The…

Q: An unknown silver/gray (92.9-g) piece of metal at 178.0°C is quickly placed to 75.0 mL of water…

A:

Q: A pile of wet mud and a pile of sandy clay are placed next to each other on a sunny day. If the…

A: The question is based on the concept of a specific heat capacity. amount of heat required to raise…

Q: Express the quantity in the unit indicated and designate whether this heat is gained or lost by the…

A: Given data:  Mass of water = 162.5 g The initial temperature of water = 45.84 °C The final…

Q: Lana is using a calorimeter to determine the specific heat of a metallic sample. She measures out…

A: