A water drop will evapourate if all its KE is converted to heat if the room temperature is 40 C and g=10m/s^2.The height of the fall is.....
A water drop will evapourate if all its KE is converted to heat if the room...
how much heat is needed to heat 100g of water initially at room temperature (20 degrees C) to a final temperature of 70 degrees C. The specific heat of water is 1.p cal/g×degrees C.
Assuming that radiation with λ=15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 ∘C, how many photons are necessary to raise the temperature of a 250 mL cup of water from 20 ∘C to 95 ∘C? Express your answer using
If water vapor of air in a room is converted to liquid at the same temperature, does the volume of the liquid increase, decrease, or remain the same.? Volume of the room = 300 m^3. and T= 20 oC
Exactly 10.3 mL of water at 29.0°C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the pan is 1.30 kg and the molar heat capacity of iron is 25.19 J/mol C). What is the temperature change of the skillet? oC Exactly 10.3 mL of water at 29.0°C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the...
Problem #1 Suppose a Si diode has a forward voltage drop of 1.492V at room temperature, and suppose its IV curve is so steep that the forward voltage drop is independent of current. The diode is a cylinder 0.069mm in radius, 0.053018mm deep and is glass encapsulated. The glass package is 0.09619mm in thickness, and is held at 26°C (room temperature) by a thermally conductive blanket. The diode's forward voltage drop decreases by 21.479 microvolts for every degree C above...
Methane, CH_4, is a gas room temperature but dichloromethane, CH_2Cl_2 is a liquid. Why? Water will rise up into a capillary tube. Why, and how is this phenomenon important in nature? Calculate the amount of heat in kJ that is required to heat 20.0g of ice from -25 degree C to 90 degree C, and sketch a heating curve for the process. The specific heat of ice is 2.11 J/(g, degree C); water 4.18 J/(g, degree C) and the Delta...
How much heat in kcal must be added to 0.31 kg of water at room temperature (20°C) to raise its temperature to 32°C?
You want to use your microwave oven to heat 0.30 L of water from room temperature (about 25 ?C)to boiling. The water is in a cup that has a radius of 40 mm , and you want the water to reach its boiling point in 5.00 min . Assume that the water heats uniformly and all the microwaves come in from the top and are completely absorbed by the water. please answer part c too Part C What is the...
Assuming that radiation with a wavelength = 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 degree celcius, how many photons are necessary to raise the temperature of a 350 mL cup of water from 25 degree C to 95 degree C?
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....