Suppose heat is transferred at a rate of 500 W into 1 L of water. The...

Suppose heat is transferred at a rate of 500 W into 1 L of water. The water starts at 20˚C.

a) How much heat is required to raise the water temperature to 100 ˚C? How long does this take?

b) How much heat is required to boil off half the water? How long does this take? Comment on the value compared to part a.

c) Plot temperature vs Q for this heating process. You should only need 3 points for the graph, connected by straight lines. You should have this information from the previous steps.

Expert Solution

As any problem in physics, the solution begins by identifying known quantities and relating them to the symbols used in the relevant equation. In this problem, we know the following:

m = 1000 g
C = 4.18 J/g/°C
T_initial = 20°C
T_final = 100°C

X axis - Temperature in celcius

Y axis - Heat in Lakhs joule

genius_generous answered 6 months ago

Suppose that 300.0 J of heat is transferred by conduction from a heat reservoir at a...

Suppose that 300.0 J of heat is transferred by conduction from a heat reservoir at a temperature of 415.0 K to another reservoir. Calculate the entropy change if the temperature of the second reservoir is 100.0 K

Calculate the heat capacity of 2.00 L of water, given the specific heat of water is...

Calculate the heat capacity of 2.00 L of water, given the specific heat of water is 4.187 kJ kg-1 K-1

1. Calculate the rate of heat production per unit mass (W/kg) by radiogenic elements in the...

1. Calculate the rate of heat production per unit mass (W/kg) by radiogenic elements in the following rock samples. Assume that uranium has a heat production rate of 9.81x10^-5 W/kg, thorium has a heat production rate of 2.64x10^-5 W/kg, and potassium has a heat production rate of 3.48x10^-9 W/kg. Concentrations are given in kg/kg a)A sample of continental crust with radiogenic concentrations listed below: U 1.42 parts per million, Th 5.60 parts per million, and K 1.43 parts per hundred...

The heat capacity of a certain calorimeter is 2.30 kJ·K–1 when containing 1.00 L of water....

The heat capacity of a certain calorimeter is 2.30 kJ·K–1 when containing 1.00 L of water. When 10.0 g of ammonium nitrate are dissolved in water to make 1.00 L of solution in this calorimeter, the temperature drops 1.52 K. What is the molar enthalpy of solution of ammonium nitrate? I know the answer is +28.0 kJ·mol–1, but can someone explain the steps, please? Thank you.

Explain the difference between heat and temperature. Does 1 L of water at 65°F have more, less, or the same quantity of energy as 1 L of water at 65°C?

Suppose an individual’s weekly labour supply is given by L = -10 + w, where L...

Suppose an individual’s weekly labour supply is given by L = -10 + w, where L is labour supply in hours and w is the hourly after-tax wage. Assume that firms are willing to pay a before-tax wage of $40/hr. In the absence of taxation, how many hours per week will the individual work? What are weekly earnings? Illustrate the choice in a diagram. [4] Suppose the government institutes a 25% tax on labour income. What is the after tax...

Heat is generated uniformly at a rate of 2x105 W/m3 in a wall of thermal conductivity...

Heat is generated uniformly at a rate of 2x105 W/m3 in a wall of thermal conductivity 25W/m K and thickness 60 mm. The wall is exposed to convection on both sides, with a fluid temperature of 30C and h = 50W/m2 K on the left side, a fluid temperature of 15C and h = 12 W/m2 K on the right side. (a) Determine surface temperature on each side of the wall, and (b) the maximum temperature in the wall.

Q. If a 500-L aluminum tank is filled to the brim with water at a temperature...

Q. If a 500-L aluminum tank is filled to the brim with water at a temperature of 22.00 0C. Will the water overflow when temperature cools to 15.00 0C? Assume the aluminum tank volume is also affected by the temperature change

Suppose a queueing system fitting the M/M/1 model has W = 120 minutes and L =...

Suppose a queueing system fitting the M/M/1 model has W = 120 minutes and L = 8 customers. Use these facts (and the formula for W) to find λ and μ and explain what are λ and μ.

A counter-flow double-pipe heat exchanger is to heat water from 20ºC to 80ºC at a rate...

A counter-flow double-pipe heat exchanger is to heat water from 20ºC to 80ºC at a rate of 1.2 kg/s. The heating is to be accomplished by geothermal water available at 160ºC at a mass flow rate of 2 kg/s. The inner tube is thin-walled, and has a diameter of 1.5 cm. If the overall heat transfer coefficient of the heat exchanger is 640 W/(m2.ºC), determine the length of the heat exchanger required to achieve the desired heating using the effectiveness-NTU...

Question