Pretzels contain (109 Cal/28.3 g).  How many minutes will I need to walk in order to burn off 56 g of pretzels if I walk at a brisk pace and burn 240 Cal/hour?

Q: A 25.0-g sample of rock at 250 °C is dropped into 100.0 g of water at 19 °C. If the water…

A: Specific heat is the measure of the heat required to raise the temperature of the substance by one…

Q: Convert the heat of neutralization of acetic acid from -52.2 kj/mmol to calories per %3D millimole…

A: The heat of neutralization of acetic acid  = - 52.2 KJ /mmol We know ; 1 Kilo Joules  = 1000 Joules…

Q: Calculate the calories lost when 85 g of water cools from 45 ∘C to 25 ∘C

A: Given data,Water 85g and cooling temperature 45oC to 25oC

Q: How many calories of heat energy are released when 50 grams of water is cooled from 70°C to 60°C?

A: This problem can be solved using the formula Q = mC∆T  Where, Q = heat released or absorbed by water…

Q: How much heat is needed to warm 250 g of water (about 1 cup) from 22 °C (about room temperature) to…

A: The heat required to raise the temperature can be calculated by using the equation, Q= m c ΔT…

Q: How many calories are needed to raise the temperature of 89 g of water 2°C?

A: Here we have to apply the formula for heat  mass = 89g

Q: How much energy, in calories, is needed to raise 8 grams of water from 26C to 41C

A:

Q: How many joules are there in a 255 calorie snack bar?

A: 1 cal = 4.184 J

Q: 54. Perform each conversion. (a) 345 Cal to kilowatt-hours (b) 23 J to calories (c) 5.7 × 10° J to…

A: Hi, since you have posted questions with multiple subparts we will answer first three subparts for…

Q: What is the specific heat of an object that goes from 25.2 Celsius to 31.4 Celsius Celsius when it…

A: Given: Amount of heat absorbed = 250 cal. Initial temperature = 25.2 oC Final temperature = 31.4 oC…

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: In the heat of fusion for water is 80. cal/ g  how many calories are needed to melt 35.0 grams of…

A: Given : Heat of fusion of water = 80 cal/g And mass of ice = 35.0 g

Q: A metal with a specific heat of 0.780 J/g degrees C requires 45.0 J of heat to raise the temperature…

A: The amount of heat released or absorbed by the substance is calculated by the formula,…

Q: How many calories are required to increase the temperature of 13g of alcohol from 11 degrees celsius…

A: q = mc∆T Where q = heat required  c = specific heat  ∆T = change in temperature

Q: A serving of fish contains 60 g protein and 18 g of fat. If protein has a caloric value of 4 kcal/g…

A:

Q: How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from −23.0 °C…

A: Given : Mass of ice cube = 28.4 g Initial temperature of ice cube = -23.0 oC And final temperature…

Q: how many calories correspond to 28.4 J?

A: Concept introduction- Joule and Calorie both are units of energy. Energy can be converted into heat.…

Q: How many calories are there in a 255 Calorie snack bar? 60.9 none of the above 1.07 x 103 2.55 x 105…

A: Option d is correct. 2.55 *10^5. There are 1000 calories in every Calorie.If you take 255 x 1000…

Q: How many calories are required to raise the temperature of a 73.0 g sample of gold from 26.0 °C to…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: When 1.0 g of gasoline burns, it releases 11 kcal. The density of gasoline is 0.74 g/mL. How many…

A: Gasoline is a refined form of petroleum that is use as fuels in running of vehicles and many other…

Q: 3. If burning 1 gram of cornflake (in a calorimeter) caused the temperature of 23.0°C water (100 mL)…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: It is estimated that a slice of blueberry pie has about 355 nutritional calories (1 nutritional…

A: Given :  Nutritional calories present in Blueberry pie = 355   1 Nutritional calories…

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

A:

Q: On a brisk walk, a person burns about 312 cal/h. If the brisk walk were done at 2.1 mi/h, how far…

A: Using the literature findings, on an average, we may assume here that 1 lb body fat will consist of…

Q: How much heat is required, in calories, to raise the temperature of 57.8 g of silver from  17.0°C to…

A: Given mass = 57.8 g initial temperature = 17.0°C Final temperature = 43.5°C specific heat capacity (…

Q: How many joules are in 510 Cal (food calories)?

A: Given ,  Energy in cal = 510 cal

Q: How much heat, in joules and calories, is needed to heat up 1.00 mL of water from 22.3°C to 87.6°C?

A: We have given that Volume of water= 1ml We know that  Density of water = 1g/ml Mass of water = 1g…

Q: How many small calories will a 298-pound athlete consume after running a distance of 458 yards in…

A: Step:I   Given that:       Mass of the athlete, m⇒298 lb…

Q: How many calories of heat does it take to change the temperature of 208.6 g of ice from -46.1°C to…

A:

Q: How many calories of heat are needed to raise the temperature of 75g of water from 20 ᵒ C to 80 ᵒ C.

A:

Q: If the initial temperature of 120. g of ethanol is 20.0°C, what will be the final temperature after…

A:

Q: A runner burns 2.56x103  kj during a five-mile run. How manny nutritional Calories did the runner…

A: Nutritional Calorie is an energy unit and defined as the amount of energy to heat 1 kilogram of…

Q: Convert 39.0 kJ to calories. Hint: Notice the little c in calories. 1 calorie = 4.184 joules 1…

A: Given that : We have to convert 39.0 kJ to calories. Also, 1 calorie = 4.184 joules 1 Calorie = 1000…

Q: observes

A: Given: Weight of LiCl g 10.30 Weight of Water g 250.00 Initial T deg C 22.00 Final T…

Q: Use Numbers If sample A requires 10 calories to raise the temperature of a 1-g sample 1°C, how many…

A:

Q: ow much heat is required to warm 1.20 Lof water from 20.0 ∘Cto 100.0 ∘C? (Assume a density of…

A: Amount of heat absorbed 'q 'to raise the temperature is found by the following equation,…

Q: Assume that 1 gram of liquid water is at a temperature of 20°C. How many calories (or joules) of…

A: The amount of heat required to increase the temperature of one kilogram of a substance by one degree…

Q: How many calories of energy correspond to 28.4J ?

A: 1. In physical chemistry, for the measurement  of total energy, we have to use some important units…

Q: How many kJ of energy can be released by a banana containing 150 Calories?

A: Calories (Cal) and Kilo-Jules (kJ) are the units of Energy. When any food will be taken by us It…

Q: How much heat in calories is needed to raise 250grams of water from 80°C to 90°C?

A:

Q: Drinking cold water actually causes the body to expend calories as your body warms it to body…

A: Step 1: When the temperature is increased for water or any matter the energy consumed is expressed…

Q: Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3…

A: The question is based on the concept of physical chemistry. we have to convert the given energy into…

Q: How many grams of carbon are present if it requires 57.5kj of energy to heat a sample from 20.0 to…

A: Specific heat: Heat requires for system to raise temperature of substance by 1 degree Celsius or 1…

Q: Copper wires used to transport electrical current heat up because of the resistance in the wire. If…

A: Heat gained by metal  Q = m S ∆T  Where  Q= 285 J  m= 162 g  S = 0.384 J/g.°C  ∆T = temperature…

Q: A student has two containers—one with 10 g of sand and one with 10 g of ethanol. (a) Which substance…

A: Given: 10 g of sand 10 g of ethanol The specific heat capacity of sand and ethanol is taken as…

Q: The heat from a candy bar's Calories can raise the temperature of a 4.50 kg bucket of water from 4°C…

A:

Q: What happens to the internal and external temperature of the body after drinking cold water?…

A:

Q: What would be the final temperature of the system if 29.3 g of lead at 110 ◦C is dropped into 13.3 g…

A: Given : Mass of water = 13.3 g Mass of metal = 29.3 g Initial temperature of water = 25.1 oC Initial…