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How many calories will it take to raise the temperature of a 36 g gold chain from 20 and degC to 125 and degC?
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The specific heat of a certain type of cooking oil is 1.75 cal(g and middot and degC). How much heat energy is needed to raise the temperature of 2.40 kg of this oil from 23 and degC to 191 and degC?
The energy is 103,6 kcal.
A helium-filled balloon contains 0.26 mol He at 101 kPa and a temperature of 21 and degC. What is the volume of the gas in the balloon?
6.3 L
If the temperature changes by 100 K by how much does it change in and degC?
A change of 100 degrees K is equal to a change of 100 degrees Celsius.
What is the freezing point of an aqueous 2.65 m calcium chloride solution?
dT = (i)(Kf)(m) is the equation that can be used to model the freezing point depression. dT represents the change change in temperature. i represents the amount of ions formed from the dissolution of the solute. Kf represents the constant of the freezing point depression of water. m is the molality of the solute in solution. dT = (3)(1.86 degC/m)(2.65m) dT = 14.8 degC 0-14.8 degC = -14.8 degC So the freezing point is -14.8 degrees C. The reason why this value was subtracted from zero is because the presence of a solute lowers the freezing point.
How a box with a volume of 22.4 L contains 1.0 mol of nitrogen and 2.0 mol of hydrogen at 0 and degC. statements is true?
The molar volume (22,414 L at oC and 1 at) is a constant at a given temperature.
) The temperature of a sample of water changes from 10 and degC to 20 and degC when the water absorbs 100 calories of heat. What is the mass of the sample?
one calorie of heat is able to raise one gram of water one degree Celsius so 400 calories could raise 1g of water 400 degrees, so it would raise the 80g by(400/80) 5 degrees Celsius plus the initial temp of 10 degrees, the 80g of water would have a final temp of 15 degrees Celsius
The specific heat of a certain type of cooking oil is 1.75 cal(g and middot and degC). How much heat energy is needed to raise the temperature of 2.40 kg of this oil from 23 and degC to 191 and degC?
The energy is 103,6 kcal.
The specific heat of gold is 0.031 caloriesgram and degC. If 10.0 grams of gold were heated and the temperature of the sample changed by 20.0 and degC how many calories of heat energy were absorbed by?
The needed heat is:Q = 10 x 20 x 0,031 = 6,2 calories
What is the average temperature of a nuclear reactor?
A PWR has an inlet water temperature of 275 degC and outlet 325 degC
When A balloon has a volume of 10500 liters and the temperature is 15 and degC. If the temperature were -25 and degC what would the volume of the balloon be?
It would be approx 9042 litres.
What would happen to a sample of water at 30 and degC if it is heated until the temperature reaches 120 and degC?
Water is transformed in vapors.
A solid substance with a mass of 200 grams is at its melting point temperature in a calorimeter While the substance changes from a solid to a liquid at the same temperature the 400-gram mass of water?
(4.184 J/g*degC)(400g)(40.0*degC-80.0*degC)+(200g)
How much did the temperature rise if it was -6 and At midday the temperature is 9 and degC. By how much did the temperature rise?
40
What temperature is required for fusion to happen?
In tokamak reactors, approx 300 million degC
The volume of a gas is 605 liters at 27.0 and degC. The new temperature is -3.0 and degC. What is the new volume (Remember to convert temperatures to the Kelvin scale.)?
The new volume is 544,5 l.
When the temperature on Mercury averages 178.9 and degC. What is that temperature in Fahrenhei?
178.9 Celsius is 354 Fahrenheit. Multiply by nine fifths and add thirty-two.
What is the metric unit used for measuring temperature?
Degrees Celsius. Absolute (SI units) are Kelvin=degC+273.15
