An adult eats food whose nutritional energy totals approximately 2100 Cal per day. The adult burns 1800 Cal per day. How much excess nutritional energy, in kilojoules, does the adult consume per day?

Q: The specific heat of an unknown metal is calculated to be 3.74 J/g °C. What is the mass of the…

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Q: The heat capacity of 5.00 grams of iron is 2.23 J/°C. How much heat is required to change the…

A: The amount of iron is = 5.00 g The heat capacity of 5.00 g of iron is = 2.23 J/oC The amount of heat…

Q: To raise the temperature of 75.0 g of a particular metal by 1.50 °C requires 107 calories of heat.…

A: Specific heat: It is defined as the amount of heat required to raise the temperature by 1gm of a…

Q: What is the final temperature of gold. The specific heat capacity is 0.128 j/g. C

A: Specific heat capacity is amount of heat required to raise temperature of one gram of a substance by…

Q: Calculate the calories needed to heat 7.9 grams of water from 15 degrees Celsius to 33 degrees…

A: Mass of water (m) = 7.9 g Initial temperature (Ti) = 15°C Final temperature (Tf) = 33°C Calories…

Q: One hour of bicycle riding can require 500-900 kcal of energy, depending on the speed, the terrain,…

A: Given : rate of energy consumed = 505 Kcal/hr Mass of fat to lose = 21.0 lbs Energy of 1 g of fat =…

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

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Q: Calories

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Q: Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken…

A: We have to convert 119 KJ = ? KCal

Q: Does 1L of water at 65° C have more, less or same quantity of energy as 1 mL of water at 65° C?…

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Q: What is the SI unit of energy? List some other common units of energy.

A: The capacity to do work is called energy.

Q: Convert 15.00 kJ to calories (cal). 15.00 kJ = Convert 203 kcal to kilojoules (kJ). 203 kcal

A: Given here energy in unit of kJ and kcal and we are asked to convert themin cal and kJ the energies…

Q: When a 0.69-g sample of olive oil is burned in a calorimeter, the heat released increases the…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: Heat produced by combustion of a 3.000 g food sample was –9643J. How much heat, in Joules, was…

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Q: One hour of bicycle racing can require 500-900 kcal of energy, depending on the speed of the race,…

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Q: A) A hamburger comtains 409 kilocalories(409 cal). How many kJ is this? B) If a jogger burns 1225 kJ…

A: (a) The conversion of kilocalories into kilojoules is

Q: What is the energy value (kcal/g) for the oil?

A: Given :- mass = 0.40 g  Heat energy = 17.3 KJ  To convert :- energy from kJ to kcal/g

Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

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Q: The energy needed to keep a 75 - watt lightbulb burning for 1.0 hr is 270kJ. Calculate the energy…

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Q: Titanium (Ti) was heated to a temperature of 35 °C. If the initial temperature of 35.0 g of Titanium…

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Q: Calories

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Q: The specific heat of lead is 0.128 J/g·°C. How much heat is needed to raise the temperature of 4.90…

A: Introduction: Specific Heat Formula Heat added to a m kg substance which has specific heat c and…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 203.0 g sample…

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Q: Suppose that a person eats a diet of 2383 Calories per day. Convert this energy into kilowatt-hours.

A: In generally power is given by kWh so the calories of energy is cavorted as kWh by below,

Q: A 2 gram peanut is burned to heat water. The peanut has 6.5 kcal/gram. The water heats from 15C to…

A: Answer:-This question is answered by using the simple concept of calorimetry who states that heat…

Q: The specific heat of a metal is 3.76cal/g °C. How much heat energy will it take to heat a 25.0g…

A: The amount of heat energy needed in calorie = 5217 cal

Q: Burning 1 lb of red oak wood releases 6, 388 BTU of energy. How many calories are released? 1.447…

A: Energy= 6388 BTU

Q: A 18g sample of a material absorbed 898 calories, raising the temperature of the anitmony from 33…

A: We have to calculate the specific heat of antimony.

Q: A 27.5g piece of aluminum sits in a room and cools.  It loses 6120.0 J of heat. If the initial…

A: Mass of Aluminum piece = 27.5 gHeat loose = - 6120 JInitial Temperature = 157.3°CFinal Temperature =…